Clicking Manage for a User Token in Web Management Portal does nothing. (4310963)

When clicking "Manage" for a token in the Web Management Portal, nothing appears or pops up allowing the token to be managed.

When the Web Management Portal logs are opened, the following error is displayed.

ERROR 2014-01-01 00:00:01,989 33652ms [6] ApplicationController  OnException        - Unhandled exception caught in controller
System.FormatException: Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).
   at System.Guid..ctor(String g)
   at Defender.Models.TokenRepository.GetByGuid(String guid)
   at Defender.WebInterface.Admin.Controllers.TokensController.Manage(String tokenGuid, String userGuid)
   at lambda_method(ExecutionScope , ControllerBase , Object[] )
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a()
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)