Grammarly IT has addressed the issue and confirmed full functionality.

Grammarly is has issued the following status message:

Investigating - We’re experiencing some service interruptions at the moment. Some users may have trouble logging in, editing their documents, or accessing their account settings. Other users may not be able to see suggestions or corrections from Grammarly. We’re investigating the problem and will provide an update as soon as possible.
Nov 08, 2024 - 08:27 PST

For the latest information on the outage, please refer to Grammarly's status site: https://status.grammarly.com/