PHP Warning

Hello,

This looks like it may be a file permissions on your server. Here is a quick tutorial on how to change file permissions: https://www.wpbeginner.com/beginners-guide/how-to-fix-file-and-folder-permissions-error-in-wordpress/

Let me know if this works for you!

Hi,
I checked the directory wp-content/cache : the permission is 755 like it should be.
Any other idea?
Thanks and regards
Martin

Where should be the location of the directory for the caching?
I saw, that all the settings are in SimplePie.php . And I do not want to modify your File.
So it is easiest to create a directory “cache” at the right place, but where exactly?
Thanks a lot!