call_user_func_array() expects parameter 1 to be a valid callback

Hello @logen007,

Thank you for sending over the screenshot. Typically PHP warnings are notices for developers who are creating something. They can point to things that the developer may want to change, but they don’t necessarily mean something won’t work. Generally, it’s best to disable them on live sites so if anything happens it doesn’t appear for your customers.

WP Beginner has an article you can follow on how to turn those off:

https://www.wpbeginner.com/wp-tutorials/how-to-turn-off-php-errors-in-wordpress/

If you have any questions, please let us know.