"there was an error sending your message" on Windows 10 mail
Method 1: Remove one of the many accounts that you have synced with the app, reconfigure it again, and check if you still receive the message. If not then follow the same for all the other accounts.
Method 2: If the above method did not help, then try the app troubleshooter and check if it detects any error.
- Type “Troubleshooting” in the search box and press Enter.
- Click on ‘View All’ on the top left pane.
- Click on “Windows Store Apps” from the list and follow the on-screen prompts for troubleshooting.
However considering you have already purchased Restoro and would like us to assist you in doing that utilizing a remote session, please contact our support and they will be happy to help you.