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Please refer to Error ID: 0
The parameters dictionary contains a null entry for parameter 'EventId' of non-nullable type 'System.Guid' for method 'System.Web.Mvc.ActionResult Register(Int32, System.Guid, System.String)' in 'ClubRunner.PublicPortal.Controllers.EventController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter. Parameter name: parameters