Fatal error: Uncaught Error: Interface 'craft\base\Serializable' not found in /home/mpolsk5/public_html/lakemissouri.com/vendor/craftcms/cms/src/test/mockclasses/serializable/Serializable.php:19
Stack trace:
#0 {main}
thrown in /home/mpolsk5/public_html/lakemissouri.com/vendor/craftcms/cms/src/test/mockclasses/serializable/Serializable.php on line 19