Site gives an ERR_EMPTY_RESPONSE

Hi,

Please post us your login credentials (in the “private data” field), so we can take a look at your backend.

1. Install and activate ” Temporary Login Without Password “.
2. Go to ” Users > Temporary Logins ” on the left-side menu.
3. Click ” Create New “.
4. Add the email address for the account ( you can use (Email address hidden if logged out) ), as well as the ” Role ” making that the highest possible and the expiry about four days
   ( do be sure that we have enough time to debug ).
5. Click ” Submit “.
6. You’ll now have a temporary account. Please provide us here in the private section the URL, so we can login and help you out.

When your issue is fixed, you can always remove the plugin!
If you prefer to not use the plugin, you can manually create a admin user and post the login credentials in the “private data” field.

Best regards,
Yigit

Hi,

Thank you for the info. Please wait for the rest of the team to check the thread. We already know that the admin-ajax.php file is not accessible for a period of time after attempting to update or save a page. I found an old thread with the same exact issue and it described how mod_security directive blocks the file to protect the site from various attacks, mistakenly detecting the request as malicious or harmful. Maybe, this is what’s happening in your installation.

// https://kriesi.at/support/topic/avia-page-builder-not-loading-for-only-one-page/#post-886343

Hi they(the host) removed the admin-ajax.php file and this was their response after I told them it’s still not working:

Best regards,
Ismael

Hi,

No that is not the case when you switch themes you can add the text to a default editor and it works fine to update.

The default editor works because it’s not creating too many requests via the admin-ajax.php file. We can clearly see the error in the console after updating the theme with the advance layout builder. The admin-ajax.php file is not found or not accessible. Please check the screenshot.

// https://imgur.com/a/tJqNk

Best regards,
Ismael

Hi,

We are very sorry for the confusion. I tried to debug the issue again on a test page. The problem starts to happen when the page or post reach a certain amount of content or bytes. I added 12 simple text blocks in the page, a total of 3309 bytes. The page is still updating properly up to this point. As soon as I used the text above, the content size increased to 18157 bytes. This time the error started to occur again. I found this documentation which is probably related to the issue.

// https://www.digitalocean.com/community/tutorials/how-to-set-up-mod_security-with-apache-on-debian-ubuntu

Please ask your hosting provider to increase the value of the “SecRequestBodyNoFilesLimit” directive. Or ask them to whitelist the “admin-ajax.php” file from the mod security rule.

Best regards,
Ismael