Hi @Philip Söderlund
Could you please tell me:
How did you integrate Teams with SharePoint?
If you encounter this error on the desktop client, please try to clear the cache and test again:
Step 1. If Teams is still running, right-click the Teams icon in the taskbar, and then select Quit.
Step 2. Press Win + R to open the Run box. Then type %AppData%\Microsoft\teams\ in the box and press Enter to run it.
Step 3. In the pop-up File Explorer window, double-click the Cache folder and then delete all files in the folder.
Step 4. Restart Teams.
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