We recently upgrade from Ubuntu 14.04 to 16.04, and upgraded to PHP 7.0. We are on a test AWS instance Whenever I click Login page of our website, our Apache server pushes the CPU to 100%. In the apache error logs, I get these errors message in the apache log: [Fri Feb 28 16:24:40.265692 2020] [:error] [pid 14817] PHP Fatal error: Allowed memory size of 6442450944 bytes exhausted (tried to allocate 20480 bytes) in /var/www/html/salesdatalist.com/members/library/sf/sfServiceContainer.php on line 352, referer: https://salesdatalist.com/ [Fri Feb 28 16:27:46.325437 2020] [:error] [pid 27394] PHP Fatal error: Allowed memory size of 6442450944 bytes exhausted (tried to allocate 262144 bytes) in /var/www/html/salesdatalist.com/members/library/sf/sfServiceContainer.php on line 352, referer: https://salesdatalist.com/ Do you have any idea what would cause this? I've submitted a ticket