The PHP OPcache module is not properly configured Issue

ℹ️ Support
2

It would be best to give some more information. Since it is a 3rd party provider you should first look if they give you some way to set configure parameters for PHP.

Here is some documentation on setting it. Read it carefully.
https://docs.nextcloud.com/server/latest/admin_manual/installation/server_tuning.html#enable-php-opcache

If you want more help you may need to add more information like:

  1. Nextcloud version
  2. Operating system and version
  3. Web sever and version (ie Apache)
  4. What you have access to on your third party system. They may not allow you to set this.

See also:

Nextcloud 23.02 OPcache interned strings buffer makes it sound like this may not be important to change.