Hello, I’m getting this error and have tried your recommendations in older posts to no avail. I’m not running a cache plugin, have cleared by browser cache, did not find a registration_page_display.php, have not modified any EE templates and have deactivated/reinstalled EE 3.1.36.5.P from my login page. MY WP version is 3.9.2
This is usually caused by a plugin conflict such as a caching plugin but you have shared that there are no caching services running.
Does it work if only Event Espresso is running?
I also see that you are using several customized templates. Could you try temporarily renaming this folder if it still doesn’t work when only Event Espresso is running:
The support post ‘Sorry, there was a security error and your registration was not saved (11)’ 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.