Webaccess Fault

Hi,

i have a onccuring fault in the Devolutions Server Webaccess.
Can you help me to eliminate.






TypeError: Die Eigenschaft "children" eines undefinierten oder Nullverweises kann nicht abgerufen werden.
at n.prototype.setValuesForListView (http://svardmsrv1/dvls/11.3c191ec3a09a7ce6452f.js:1:131028)
at Anonymous function (http://svardmsrv1/dvls/11.3c191ec3a09a7ce6452f.js:1:128867)
at t.prototype.__tryOrUnsub (http://svardmsrv1/dvls/main.60590d2640e17a7d3243.js:1:760925)
at t.prototype.next (http://svardmsrv1/dvls/main.60590d2640e17a7d3243.js:1:760067)
at t.prototype._next (http://svardmsrv1/dvls/main.60590d2640e17a7d3243.js:1:759107)
at t.prototype.next (http://svardmsrv1/dvls/main.60590d2640e17a7d3243.js:1:758790)
at Anonymous function (http://svardmsrv1/dvls/main.60590d2640e17a7d3243.js:1:1527336)
at t.prototype.invoke (http://svardmsrv1/dvls/polyfills.f74a6b736a29eeb8e163.js:1:7972)
at onInvoke (http://svardmsrv1/dvls/main.60590d2640e17a7d3243.js:1:448322)
at t.prototype.invoke (http://svardmsrv1/dvls/polyfills.f74a6b736a29eeb8e163.js:1:7972)






The following error was received by at 9/13/2018 6:50:54 AM
Error:
NullReferenceException - Object reference not set to an instance of an object. at Devolutions.RemoteDesktopManager.Business.AddOnConnection.DoSetUserName(Connection owner, ConnectionType connectionTypeValue, String subConnectionType, String userName) at Devolutions.RemoteDesktopManager.Business.Connection.DoSetUserName(Connection owner, ConnectionType connectionTypeValue, String subConnectionType, String userName) at Devolutions.RemoteDesktopManager.Business.BaseConnection.DoSetCredentials(Connection owner, ConnectionType connectionTypeValue, String subConnectionType, String userName, String password, String domain) at Devolutions.Server.ConnectionOverrideManager.DoApplyCredentialOverride(Connection connection, BaseConnectionOverride connectionOverride) at Devolutions.Server.ConnectionOverrideManager.ApplyCredentialOverride(SessionContext context, Connection connection) at Devolutions.Server.SecurityManager.CanViewPasswordRights(SessionContext context, ConnectionInfoEntity connectionInfo) at Devolutions.Server.SecurityManager.CanViewPassword(SessionContext context, ConnectionInfoEntity currentConnection, Connection deserializeConnection) at Devolutions.RemoteDesktopManager.Server.Managers.PartialConnectionManager.SetPartialConnectionPermissions(SessionContext context, PartialConnection partial, ConnectionInfoEntity connectionInfoEntity, Boolean defaultRooCanView) at Devolutions.RemoteDesktopManager.Server.Managers.PartialConnectionManager.CreatePartialConnectionNoData(SessionContext context, ConnectionInfoEntity connectionInfoEntity, Boolean defaultRootCanView, Boolean isPrivate) at Devolutions.Server.ConnectionNavigationManager.CreatePartialTree(SessionContext context, PartialConnection partialConnectionBase, ConnectionInfoEntity[] connectionInfoEntities, Boolean defaultRootCanView, Boolean isPrivate) at Devolutions.Server.ConnectionNavigationManager.GetConnectionsTree(SessionContext context) at Devolutions.Server.Controllers.APIControllers.V2.BackendApiController.GetPartialConnectionTree() at lambda_method(Closure , Object , Object[] ) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.b__9(Object instance, Object[] methodParameters) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken) --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Controllers.ApiControllerActionInvoker.d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Filters.ActionFilterAttribute.d__5.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Web.Http.Filters.ActionFilterAttribute.d__5.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Filters.ActionFilterAttribute.d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Controllers.ActionFilterResult.d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Filters.AuthorizationFilterAttribute.d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Controllers.ExceptionFilterResult.d__0.MoveNext() --- Default
Source:
RemoteDesktopManager.Business