December 20, 2018 at 10:53 pm
#78895
Syam Mohan
Keymaster
Hi Volker,
This sounds like a configuration issue. Do you get the same error if you try to activate a different plugin?
“advanced-cache.php” is not a file associated with this plugin. Its usually created by caching plugins. Do you have any caching plugin in your site?
Thanks
Syam