Since migrating our test system to 7.7.2 cannot open incident in Webdesk

Hi all

We have update our test system to 7.7.2 and when trying to open incidents, Requests, Changes etc.. or even trying to log new incident s we get the below errors.

Any ideas

There has been an unexpected error. Click Continue to return to the previous page.

Object reference not set to an instance of an object.

at Touchpaper.Framework.DesktopManagement.GenericConfig.LoadConfig()
  at Touchpaper.Web.Console.DataObjectExtensions.d__37.MoveNext()
  at Touchpaper.Web.Console.DataObjectExtensions.d__1a.MoveNext()
  at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
  at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
  at Touchpaper.Web.Console.Controllers.ObjectController.BuildActionPanel(ILifecycleObject dataObject, Nullable`1 lockedObjectAction, ObjectForm form)
  at Touchpaper.Web.Console.Controllers.ObjectController.PopulateForm(ObjectForm form, IDataObject dataObject)
  at Touchpaper.Web.Console.Controllers.ObjectController.OpenForm(ObjectParameters parameters, String formID, IDataObject dataObject, Nullable`1 lockObjectAction)
  at Touchpaper.Web.Console.Controllers.ObjectController.OpenForm(ObjectParameters parameters, String formID)
  at Touchpaper.Web.Console.Controllers.ObjectController.Open()
  at lambda_method(Closure , 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.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.b__33()
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.b__36(IAsyncResult asyncResult)
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.b__20()
  at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.b__22(IAsyncResult asyncResult)