Error / Warning after update

After the last update the warning appears in the backend when creating a new post.

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wplp_edit_form_after_title’ not found or invalid function name in /www/htdocs/w01277ab/rossach-bowhunter.de/wp-includes/class-wp-hook.php on line 286

If disable the plugin the alert is gone.

Hope everyone can help.

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