If you receive A JavaScript error occurred in the main process, Uncaught Exception message when you try to open apps like Skype, Discord, etc, in Windows 11/10, then ...

Most Microsoft Teams users have experienced login error CAA5009D. Here's what you can do to resolve the issue once and for all.

Method 3: Uninstall then reinstall the Microsoft Teams app to fix cannot login issue Sometimes this problem can already be caused by a corrupted app file.