If you are experiencing a technical problem on the D&D Beyond website or tools and want to see if it is a known issue, or want to see the status of an ongoing technical issue, your can click on the D&D Beyond Status Page link in the upper right-hand corner of our D&D Beyond Help Center. There, you can see the System Status for all the areas for D&D Beyond.
On that page you can also click History in the upper right-hand corner to see previous issues that have since been resolved. Clicking on a particular entry will show you the notes and timeline for said issue.