Try to clear Teams caches to see how it goes:
- Close Outlook and Teams,
- Go to File Explorer and type %appdata%\Microsoft\teams.
- Then delete the following files. You can move the files to another place to avoid the data loss:
- In Application Cache -> Cache folder, delete all files in it.
- In Blob_storage folder, delete all files.
- In Cache folder, delete all files.
- In databases folder, delete all files.
- In GPUCache folder, delete all files.
- In IndexedDB folder, delete the .db file.
- In Local Storage folder, delete all files.
- In tmp folder, delete all files.
- Delete the file “settings”