catchflames_site_icon_migrate' not found or invalid function name
Hello,
i have this problem
call_user_func_array() expects parameter 1 to be a valid callback, function 'catchflames_site_icon_migrate' not found or invalid function name
pyrofeuer.de/wp-includes/class-wp-hook.php Zeile 286
how can i fix it?
PHP versin 7.2
regards
Martin