The site is experiencing technical difficulties for Pro site

[nyrngr94]

We cannot log into the dashboard anymore. Keep getting the error message “The site is experiencing technical difficulties.”. Running Pro. Turned on Debug, and get the following:

[04-Nov-2019 22:40:20 UTC] PHP Notice: Undefined index: input in /home1/caldera1/public_html/q/wp-includes/kses.php on line 1155
[04-Nov-2019 22:40:36 UTC] PHP Fatal error: Cannot redeclare qqlxegi() (previously declared in /home1/caldera1/public_html/q/wp-content/mu-plugins/lptfwxdo.php:2) in /home1/caldera1/public_html/q/wp-content/mu-plugins/lptfwxdo.php on line 2
[04-Nov-2019 22:40:36 UTC] PHP Notice: is_404 was called incorrectly. Conditional query tags do not work before the query is run. Before then, they always return false. Please see Debugging in WordPress for more information. (This message was added in version 3.1.0.) in /home1/caldera1/public_html/q/wp-includes/functions.php on line 4778
[04-Nov-2019 22:40:36 UTC] PHP Fatal error: Call to undefined function is_user_logged_in() in /home1/caldera1/public_html/q/wp-content/mu-plugins/endurance-page-cache.php on line 721

Any help in getting this solved, much appreciated. Checked ksks.php, but didnt see anything logically in error.

[lely]

Hi @nyrngr94,

We’re sorry you are having this issue. Yes, it’s a good step to turn on Debug. The root cause is this part:

[04-Nov-2019 22:40:36 UTC] PHP Fatal error: Cannot redeclare qqlxegi() (previously declared in /home1/caldera1/public_html/q/wp-content/mu-plugins/lptfwxdo.php:2) in /home1/caldera1/public_html/q/wp-content/mu-plugins/lptfwxdo.php on line 2

There’s a certain plugin that is breaking your site. The cause might be coming from the actual plugin or you might customize a function from that plugin on to the child theme. To fixed this, you need to disable the plugin via FTP. To do that here’s a guide.

Hope this helps.