The error log is quite large, nearly 4MB. Here’s a portion:
[Mon Apr 09 06:27:15.300066 2018] [mpm_prefork:notice] [pid 1498] AH00163: Apache/2.4.29 (Ubuntu) OpenSSL/1.1.0g configured -- resuming normal operations
[Mon Apr 09 06:27:15.300090 2018] [core:notice] [pid 1498] AH00094: Command line: '/usr/sbin/apache2'
[Mon Apr 09 11:02:25.803453 2018] [mpm_prefork:notice] [pid 1498] AH00169: caught SIGTERM, shutting down
[Mon Apr 09 11:02:42.066304 2018] [mpm_prefork:notice] [pid 14794] AH00163: Apache/2.4.33 (Ubuntu) OpenSSL/1.1.0h configured -- resuming normal operations
[Mon Apr 09 11:02:42.066355 2018] [core:notice] [pid 14794] AH00094: Command line: '/usr/sbin/apache2'
[Mon Apr 09 11:03:58.791494 2018] [mpm_prefork:notice] [pid 14794] AH00169: caught SIGTERM, shutting down
[Mon Apr 09 11:04:32.260699 2018] [mpm_prefork:notice] [pid 4138] AH00163: Apache/2.4.33 (Ubuntu) OpenSSL/1.1.0h configured -- resuming normal operations
[Mon Apr 09 11:04:32.260786 2018] [core:notice] [pid 4138] AH00094: Command line: '/usr/sbin/apache2'
[Mon Apr 09 11:05:07.880201 2018] [php7:error] [pid 4175] [client xx.xx.xx.xx:51075] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:09.727442 2018] [php7:error] [pid 4143] [client xx.xx.xx.xx:55637] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:14.183925 2018] [php7:error] [pid 4300] [client xx.xx.xx.xx:55823] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:15.354272 2018] [php7:error] [pid 4237] [client xx.xx.xx.xx:56201] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:18.824752 2018] [php7:error] [pid 4296] [client xx.xx.xx.xx:63572] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:19.296611 2018] [php7:error] [pid 4244] [client xx.xx.xx.xx:54826] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:20.526256 2018] [php7:error] [pid 4305] [client xx.xx.xx.xx:58498] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:25.073969 2018] [php7:error] [pid 4246] [client xx.xx.xx.xx:49811] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:26.346861 2018] [php7:error] [pid 4143] [client xx.xx.xx.xx:54840] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:26.783144 2018] [php7:error] [pid 4244] [client xx.xx.xx.xx:57937] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:29.846180 2018] [php7:error] [pid 4175] [client xx.xx.xx.xx:64607] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:52.290899 2018] [php7:error] [pid 4245] [client xx.xx.xx.xx:54762] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:05:55.881944 2018] [php7:error] [pid 4246] [client xx.xx.xx.xx:51410] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:06:08.460724 2018] [php7:error] [pid 4246] [client xx.xx.xx.xx:54716] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:06:39.182908 2018] [php7:error] [pid 4264] [client xx.xx.xx.xx:61637] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 261, referer: http://xx.xx.xx.xx/fog/management/index.php?node=host&sub=edit&id=174
[Mon Apr 09 11:08:58.537026 2018] [php7:error] [pid 4177] [client xx.xx.xx.xx:49320] PHP Fatal error: Uncaught Exception: Error multiple hosts returned for list of mac addresses in /var/www/html/fog/lib/fog/hostmanager.class.php:209\nStack trace:\n#0 /var/www/html/fog/lib/fog/fogbase.class.php(571): HostManager->getHostByMacAddresses(Array)\n#1 /var/www/html/fog/lib/client/registerclient.class.php(46): FOGBase::getHostItem(true, false, false, true)\n#2 /var/www/html/fog/lib/fog/fogpage.class.php(3005): RegisterClient->json()\n#3 /var/www/html/fog/lib/fog/fogpage.class.php(249): FOGPage->requestClientInfo()\n#4 /var/www/html/fog/lib/pages/processlogin.class.php(57): FOGPage->__construct('')\n#5 /var/www/html/fog/lib/fog/fogpagemanager.class.php(381): ProcessLogin->__construct()\n#6 [internal function]: FOGPageManager->{closure}('/var/www/html/f...')\n#7 /var/www/html/fog/lib/fog/fogpagemanager.class.php(386): array_map(Object(Closure), Array)\n#8 /var/www/html/fog/lib/fog/fogpagemanager.class.php(79): FOGPageManager->loadPageClasses()\n#9 [internal function]: FOGPageManager->__construct()\n#10 /var/www/html/fog/lib/fog/fo in /var/www/html/fog/lib/fog/hostmanager.class.php on line 209
[Mon Apr 09 11:11:19.052570 2018] [php7:error] [pid 8040] [client xx.xx.xx.xx:62387] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /var/www/html/fog/lib/fog/fogbase.class.php on line 2398, referer: http://xx.xx.xx.xx/fog/management/index.php?node=host&sub=edit&id=174
Please let me know what else you would like and thanks.