Teams Desktop error. “The specified list is invalid”, “the specified list might have been deleted or you might not have permission to view it”

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”

Source: Teams Desktop error. “The specified list is invalid”, “the – Microsoft Community