quickest fix rather than re-installing everything is: on the server rename /var/www/fog/lib/plugins/LDAP to something else like: LDAP1
this will essentially stop the LDAP Plugin “loading”
now you have access back - login to the GUI, deactivate/remove the LDAP plugin (under installed plugins) then rename /var/www/fog/lib/plugins/LDAP1 back to LDAP
if you want to try again and re-check your setting you can now enable LDAP plugin again and if it fails follow the process above again to regain access…logs will be your friend here to figure out what’s wrong 🙂