Thank you for your reply.
You mean you always see that error in the logs, not in the UI?
Yes, I mean in the logs not in the UI. But when I see the error in the UI, I don't see that error message in the logs.
Do you see the same error when your plugin is not installed?
No, after I uninstall the plugin everything works fine without these messages in the logs.
Is that error happening only for the Web Client server in your dev environment or also on your installed 5.1 Web Client (Windows or VCVA)?
It only happens on the Windows VM with the 5.1 Web Client installed not in my dev environment. Everything seems to work fine in my dev environment.
What is the Web Client version when running in your dev environment?
Version 5.1.0 Build 797199
Thanks again for your help.
Ben