I am getting reports from users of blank screens when going to register for an event. This does not happen for most users. The PHP error log says:
PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 400572416 bytes) in /home/sclgulf/public_html/sclgulf/vendor/civicrm/civicrm-core/CRM/Core/Error.php on line 520
There is no error in the CiviCRM log in the ConfigAndLog directory. I have tried allocating 1GB instead of 512MB and it makes no difference. Can anyone help me debug this please?