I migrated to a different server an am noticing that I can't upgrade to version 8.6. I suspect that migrating affected my file permissions.
This is there WP error;
Removing the old version of the plugin…
Could not remove the old plugin.
Plugin update failed.
Return to Plugins page
Not a whole lot if information to go on but I'd like to start my making sure my permissions are set correctly. Is there a reference I could check?