Hello,

we recently upgraded from DNN 7.4.2 to DNN 9.0.2.
In the log files, I now see error messages that we did not see before. The main ones are here (without the dates) - the first one is the most annoying:

1. up to 10.000 times a day (only in the live system - in my test server, it only appears when I am logged in):

[WWW][Thread:14][WARN] DotNetNuke.Entities.Tabs.TabController - Invalid tabId -1 of portal 0

When I am logged in, it always appears in this conjunction:
[WWW][Thread:35][WARN] DotNetNuke.Entities.Tabs.TabController - Invalid tabId -1 of portal 0
[WWW][Thread:35][WARN] DotNetNuke.Web.Api.StandardTabAndModuleInfoProvider - The specified moniker () is not defined in the system
[WWW][Thread:35][WARN] DotNetNuke.Web.Api.StandardTabAndModuleInfoProvider - The specified moniker () is not defined in the system

2. a couple of hundred times a day:
[WWW][Thread:35][FATAL] DotNetNuke.Web.Common.Internal.DotNetNukeHttpApplication - System.Web.HttpException (0x80004005): File not found
at ClientDependency.Core.CompositeFiles.CompositeDependencyHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

3. After starting the application (e.g. iisreset), these two errors pop up once:

[mywebserver][Thread:6][WARN] DotNetNuke.Entities.Modules.DesktopModuleController - Unable to find module by name. Name:effority.Ealo.Tabs portalId:0
(strange thing is that I do not have the Ealo Extension installed)

[mywebserver][Thread:6][WARN] DotNetNuke.Entities.Modules.DesktopModuleController - Unable to find module by name. Name:PageLocalization portalId:0

Any help would be appreciated - I have not found any solution yet

Britta