Plugin claims to be compatible with WordPress 4.7, but it looks like you’re using functions from WordPress 5+ and it throws an error in WordPress 4.9. This also makes the plugin incompatible with ClassicPress.
You can test it using WPSeek’s Plugin Doctor.
I would recommend either bumping the minimum required version or using
function_existsto check if those functions exist to continue to be compatible with WordPress 4.7 or 4.9 (and ClassicPress for that matter).
- The topic ‘WordPress 4.9 compatibility’ is closed to new replies.