Home Forums Event Espresso Premium Plugin Conflict / Advanced Forms

Plugin Conflict / Advanced Forms

Posted: September 11, 2019 at 11:32 pm


September 11, 2019 at 11:32 pm

FYI – Using Advanced Forms ( for contact info etc. and it is causing an error on the payment page. Console shows “admin-ajax.php loading error, 500 internal server error”. Disabling the plugin allows event espresso payments to function properly.


September 11, 2019 at 11:57 pm

Note… also tried Contact Form 7 and the same error (wp-admin/admin-ajax.php 500 (Internal Server Error)) occurred. So I’m thinking it could be something else?


  • Support Staff

September 12, 2019 at 3:09 am

Hi there,

Error 500 is an server side error, but thats the ‘front facing’ error and doesn’t tell us anything.

Can you check your servers error logs and look for any errors thrown around the time you had the payment options page open, then post that full error here?

If you don’t have any errors in the log you can add this snippet to your site’s wp-config.php file:

That will log any errors to /wp-content/debug.log


September 12, 2019 at 11:03 am

Thx. Did so and the error was:
PHP Fatal error: Allowed memory size of 52428800 bytes exhausted (tried to allocate 20480 bytes) in /home/alaskaav/public_html/wp-content/plugins/event-espresso-core-reg/core/db_classes/EE_Base_Class.class.php on line 637

Upped the memory to 1024MB and it’s working fine – even with the plugins listed above enabled.

The support post ‘Plugin Conflict / Advanced Forms’ is closed to new replies.

Have a question about this support post? Create a new support post in our support forums and include a link to this existing support post so we can help you.

Support forum for Event Espresso 3 and Event Espresso 4.
Documentation for EE3 and EE4
Documentation for Event Espresso 3 Documentation for Event Espresso 4

Status: closed

Updated by  wfinley 1 year, 4 months ago ago

Topic Tags


This topic is:
Do NOT follow this link or you will be banned from the site!