Cannot register after upgrade to 4.6.10

[TacticalGaming]

on our test site we upgraded to 4.6.10 that way we can hash out any issues before going live.  I have disabled all applications and reverted to the default IPS theme and still get the issue in the picture.

 

also this is the log that I get as well

ArgumentCountError: Too few arguments to function IPS\core\modules\front\system_register::_createMember(), 2 passed in /home/tghqorg/public_html/TGTestSite/init.php(913) : eval()'d code on line 181 and exactly 4 expected (0)
#0 /home/tghqorg/public_html/TGTestSite/init.php(913) : eval()'d code(181): IPS\core\modules\front\system_register::_createMember(Array, Array)
#1 /home/tghqorg/public_html/TGTestSite/applications/core/modules/front/system/register.php(242): IPS\core\modules\front\system\ca_hook_atsregister::_createMember(Array, Array, NULL, Object(IPS\Helpers\Form))
#2 /home/tghqorg/public_html/TGTestSite/applications/core/modules/front/system/register.php(176): IPS\core\modules\front\system_register->_registrationForm(NULL)
#3 /home/tghqorg/public_html/TGTestSite/system/Helpers/Wizard/Wizard.php(181): IPS\core\modules\front\system_register->IPS\core\modules\front\system{closure}(Array)
#4 /home/tghqorg/public_html/TGTestSite/applications/core/modules/front/system/register.php(183): IPS\Helpers_Wizard->__toString()
#5 /home/tghqorg/public_html/TGTestSite/init.php(913) : eval()'d code(27): IPS\core\modules\front\system_register->manage()
#6 /home/tghqorg/public_html/TGTestSite/system/Dispatcher/Controller.php(101): IPS\core\modules\front\system\nexus_hook_register->manage()
#7 /home/tghqorg/public_html/TGTestSite/system/Dispatcher/Dispatcher.php(153): IPS\Dispatcher_Controller->execute()
#8 /home/tghqorg/public_html/TGTestSite/index.php(13): IPS_Dispatcher->run()
#9 {main}

[Marc]

Please could you double check you have all 3rd party items disabled, as the error message there would indicate this is not the case.

[Daniel F]

Yea, this seems to be an issue with an app which created the "ca_hook_atsregister" hook.

[TacticalGaming]

So it does seem there was one app not disabled.  Was able to register once disabled. Now to figure out how to fix it thanks!

[Jim M]

Excellent. Glad to hear you've found the offender here. You'll want to contact the author of third party application (assuming you did not develop it).