When someone tries to make a new account it seems to 500 and upon refresh an error message shows up: "You Didn't Created Any Profiles, So You Can't 'Create Account'".

The account is created just fine and everything works well but they do not get redirected anywhere after the error. I'm wondering what could be causing this issue?

AFTER REGISTERING AND GETTING THE 500 ERROR:

[07-Feb-2019 17:41:08 UTC] PHP Notice:  Undefined index: entry_author in /home/arcax285/website.com/modules/boonex/notifications/classes/BxNtfsTemplate.php on line 159

[07-Feb-2019 17:41:08 UTC] PHP Notice:  Undefined index: entry_author in /home/arcax285/website.com/modules/boonex/notifications/classes/BxNtfsTemplate.php on line 159

[07-Feb-2019 17:41:08 UTC] PHP Fatal error:  Uncaught Error: Call to a member function getModule() on boolean in /home/arcax285/website.com/modules/boonex/notifications/classes/BxNtfsResponse.php:270

Stack trace:

#0 /home/arcax285/website.com/modules/boonex/notifications/classes/BxNtfsResponse.php(43): BxNtfsResponse->sendNotifications(4697, Object(BxDolAlerts), Array)

#1 /home/arcax285/website.com/inc/classes/BxDolAlerts.php(119): BxNtfsResponse->response(Object(BxDolAlerts))

#2 /home/arcax285/website.com/inc/utils.inc.php(1334): BxDolAlerts->alert()

#3 /home/arcax285/website.com/modules/base/profile/classes/BxBaseModProfileFormsEntryHelper.php(152): bx_alert('bx_persons', 'added', '121', false, Array)

#4 /home/arcax285/website.com/modules/base/general/classes/BxBaseModGeneralFormsEntryHelper.php(150): BxBaseModProfileFormsEntryHelper->onDataAddAfter('100', '121')

#5 /home/arcax285/website.com/modules/base/general/classes/BxBaseModGene in /home/arcax285/website.com/modules/boonex/notifications/classes/BxNtfsResponse.php on line 270

Thank you very much for your time!