I have this 7.0.1 version running and when I try to reach the members section in my back office I get an error message. Through Chrome console I see this: 

)]}',
{"Message":"An error has occurred.","ExceptionMessage":"Object reference not set to an instance of an object.","ExceptionType":"System.NullReferenceException","StackTrace":"   at umbraco.cms.presentation.Trees.TreeRequestParams.get_StartNodeID()\r\n   at Umbraco.Web.Trees.LegacyTreeParams..ctor(IEnumerable`1 formCollection)\r\n   at Umbraco.Web.Trees.ApplicationTreeExtensions.TryGetRootXmlNodeFromLegacyTree(ApplicationTree appTree, FormDataCollection formCollection, UrlHelper urlHelper)\r\n   at Umbraco.Web.Trees.ApplicationTreeExtensions.TryGetRootNodeFromLegacyTree(ApplicationTree appTree, FormDataCollection formCollection, UrlHelper urlHelper, String currentSection)\r\n   at Umbraco.Web.Trees.ApplicationTreeController.<GetRootForMultipleAppTree>d__12.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at Umbraco.Web.Trees.ApplicationTreeController.<GetApplicationTrees>d__4.MoveNext()"}

I don't know whatthe problem is for this,has anyone gotten this issue?

Thanks!