Glitch in Version 3.0.5

Updated this morning. Now when you click filter to a store is troughs an error and says “Fatal error: Call to a member function _const() on a non-object in /home/content/p3nexnas06_data01/21/2080021/html/wp-content/plugins/shiftcontroller-pro/application/models/shift.php on line 285”

https://wordpress.org/plugins/shiftcontroller/