Hello everyone,
We are running a multisite system and wanted to use WP-Optimize. Although I have Super-Admin permissions, I got this notification “Could not turn on the WP_CACHE constant in wp-config.php. Check your permissions.” when I tried to turn on the site caching.
Where could be my mistake?
Also: would this be necessary to just clear the cache of all of our subdomains?
If not, how can I clear it?
Looking forward to any kind of help.
Thanks in advance.
Best regards
Benjamin Flory