If you see this error message, please copy the error code that you see and submit it in a support request to us for investigation.
If you don’t see any error code or error details, please send us diagnostics information as per the instructions in this article.
Alternatively, we suggest switching to Grammarly for Windows (available on Windows 10 or newer). This product offering also supports integration with Microsoft Word and Outlook. To find out more, check out this article.