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Error on update

Running latest versions I get this error which breaks the whole site.

Fatal error: Uncaught Error: Class 'AC_TableScreen' not found in /home/ 
Stack trace: #0 /home/ CPAC->__construct() #1 /home/ CPAC::instance() 
#2 /home/ AC() 
#3 /home/ require_once('/home/forge/ver...') 
#4 /home/ ACP_Full->__construct() 
#5 /home/ include('/home/forge/ver...') 
#6 /home/ plugin_sandbox_scrape('admin-columns-p...') 
#7 {main} thrown in /home/ on line 113

Please advice

5 years, 3 months ago

Hi Andreas,

Can you tell me how you did the upgrade?
Did you download the file and sync it with FTP to your server?
Or did you use the automatic update?
Can you try to remove the plugin and reinstall the plugin again?

5 years, 2 months ago


Thanks for getting back to me. I’ve installed multiple times in different ways.

Will try some more on my dev machine and get back to you.

5 years, 2 months ago

Had same error. It was opcache. Clear your opcache (reload httpd and/or php-fpm).

5 years, 2 months ago

Thanks for the feedback!
I hope this solution als works for Andreas.

5 years, 2 months ago

Hi Stefan

Got to test this now and it seems it was related to some heavy cache!


5 years, 2 months ago

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