[NullReferenceException]: Object reference not set to an instance of an object.

   at TheOutfield.UmbExt.UniversalMediaPicker.Providers.Vimeo.VimeoExtensions.ToVimeoVideo(XElement element)

   at TheOutfield.UmbExt.UniversalMediaPicker.Providers.Vimeo.VimeoService.<GetVideos>b__c(XElement v)

   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()

   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)

   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)

   at TheOutfield.UmbExt.UniversalMediaPicker.Providers.Vimeo.VimeoService.GetVideos()

   at TheOutfield.UmbExt.UniversalMediaPicker.Providers.Vimeo.VimeoProvider.GetMediaItems(String parentId)

   at TheOutfield.UmbExt.UniversalMediaPicker.UniversalMediaPickerAppTree.Render(XmlTree& tree)

   at umbraco.presentation.webservices.TreeDataService.LoadTree(TreeRequestParams treeParams)

   at umbraco.presentation.webservices.TreeDataService.GetXmlTree()

   at umbraco.presentation.webservices.TreeDataService.ProcessRequest(HttpContext context)

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Weird thing is, it works for other accounts I tryed, but one account where it used to work it doesn't work anymore. Can anyone help me out :)