Javascript / knockout /C# expertise required (dhtmlx a bonus) MAX $50

I have a pretty complex project which is nearly working except deletions of events from the scheduler object. The dhtmlx scheduler object is created by dhtmlx and has a recurring event feature built in. All works except deletion of events see this page for how it should work [login to view URL] I need someone to work out why its not working Need to use teamviewer so that I can watch them fix the problem