I think these errors are consistent with when I was updating :
[Tue Oct 13 15:19:45.400239 2020] [proxy_fcgi:error] [pid 18237] [client 192.168.39.202:59804] AH01067: Failed to read FastCGI header
[Tue Oct 13 15:19:45.400269 2020] [proxy_fcgi:error] [pid 18237] (104)Connection reset by peer: [client 192.168.39.202:59804] AH01075: Error dispatching request to :
[Tue Oct 13 15:19:45.424226 2020] [proxy:error] [pid 23571] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:19:45.424272 2020] [proxy_fcgi:error] [pid 23571] [client 192.168.39.202:59805] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:19:45.426384 2020] [proxy:error] [pid 18238] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:19:45.426412 2020] [proxy_fcgi:error] [pid 18238] [client 192.168.39.202:59806] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:19:45.447120 2020] [mpm_prefork:notice] [pid 707] AH00169: caught SIGTERM, shutting down
[Tue Oct 13 15:20:27.916679 2020] [mpm_prefork:notice] [pid 13584] AH00163: Apache/2.4.38 (Debian) OpenSSL/1.1.1d configured -- resuming normal operations
[Tue Oct 13 15:20:27.916729 2020] [core:notice] [pid 13584] AH00094: Command line: '/usr/sbin/apache2'
[Tue Oct 13 15:20:27.993053 2020] [proxy:error] [pid 13585] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:27.993095 2020] [proxy_fcgi:error] [pid 13585] [client 192.168.39.201:59662] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.043766 2020] [proxy:error] [pid 13586] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.043797 2020] [proxy_fcgi:error] [pid 13586] [client 192.168.39.144:49574] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.092625 2020] [proxy:error] [pid 13587] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.092655 2020] [proxy_fcgi:error] [pid 13587] [client 192.168.39.144:49575] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.095287 2020] [proxy:error] [pid 13588] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.095315 2020] [proxy_fcgi:error] [pid 13588] [client 192.168.39.144:49576] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.097553 2020] [proxy:error] [pid 13589] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.097580 2020] [proxy_fcgi:error] [pid 13589] [client 192.168.39.201:59663] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.100708 2020] [proxy:error] [pid 13585] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.100727 2020] [proxy_fcgi:error] [pid 13585] [client 192.168.39.201:59664] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.119168 2020] [proxy:error] [pid 13586] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.119194 2020] [proxy_fcgi:error] [pid 13586] [client 192.168.39.83:50776] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.152719 2020] [proxy:error] [pid 13587] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.152734 2020] [proxy_fcgi:error] [pid 13587] [client 192.168.39.51:51557] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.167072 2020] [proxy:error] [pid 13588] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.167087 2020] [proxy_fcgi:error] [pid 13588] [client 192.168.39.83:50777] AH01079: failed to make connection to backend: 127.0.0.1
[Tue Oct 13 15:20:28.170549 2020] [proxy:error] [pid 13589] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:9000 (*) failed
[Tue Oct 13 15:20:28.170563 2020] [proxy_fcgi:error] [pid 13589] [client 192.168.39.83:50778] AH01079: failed to make connection to backend: 127.0.0.1