I'm encountering a Patch Manifest error (209/210).
Please follow the steps below to uninstall and reinstall the ESO client (do not uninstall the game from your computer’s Control Panel):
Uninstall the game client
1. Select the client on left hand side of the patcher
2. Go to game options
3. Select Uninstall
Install Client
4. In the launcher Select the client
5. Click Install