Teams Error - "We're sorry -- We've run into an issue"

Just close Teams and nuke everything under %appdata%\Microsoft\Teams. Everything will repopulate when you open Teams and sign back in.

Hi GeorgeRoberson,

Since reinstall Teams can temporarily fix this issue, you can try to sign out and kill Teams from Task Manager to see how it goes.

If the problem persists, you can try to clear Teams cache to see if it can help:

1.  Fully exit the Microsoft Teams desktop client. You can right click Teams from the Icon Tray and select ‘Quit’ or run Task Manager and fully kill the process.

2.  Go to File Explorer, and type in %appdata%\Microsoft\teams.

3.  Once in the directory, you’ll see a few of the following folders:

========================================================

 a.  From within ‘Application Cache’, go to Cache and delete any of the files in the Cache location.

    *   %appdata%\Microsoft\teams\application cache\cache

 b.  From within ‘Blob_storage’, delete any files that are located in here if any.

    *   %appdata%\Microsoft\teams\blob_storage

 c.  From within ‘Cache’, delete all files.

    *   %appdata%\Microsoft\teams\Cache

 d.  From within ‘databases’, delete all files.

    *   %appdata%\Microsoft\teams\databases

 e.  From within ‘GPUCache’, delete all files.

    *   %appdata%\Microsoft\teams\GPUcache

 f.  From within ‘IndexedDB’, delete the .db file.

    *   %appdata%\Microsoft\teams\IndexedDB

 g.  From within ‘Local Storage’, delete all files.

    *   %appdata%\Microsoft\teams\Local Storage

 h.  Lastly, from within ‘tmp’, delete any file.

*   %appdata%\Microsoft\teams\tmp

====================================================

Once the cleanup is finally completed, you can now restart Teams and check the results.

Best Regards,

Sylvie

Hello

Please help me

This problem has occurred to me now

We have seen this with one of our Windows 10 builds running 1809 and the 32bit Teams client. A workaround was found by running Teams in Windows 7 compatibility mode. This has fixed a large number of instances.

I connect through a VPN - This worked for me!  Thanks for sharing

Possible resolution. 

In Windows 10 > Settings > Accounts > Access work or school , find the account you're attempting to use to sign into Teams. If it's not here add it. If it is here, disconnect and then reconnect your account. I've tried every other suggestion on this tread and on other postings online. Doing this fixed my issue immediately. 

Wait, as a warning, it says that by doing this "your organization may delete your data from this device".  Is this what actually happens when you click disconnect?