This incident is resolved. The PlusPlus web application is fully available. The issue was caused by a faulty JavaScript file in a recent release, which has been corrected. Data was not affected at any point, and no user action is required. We are reviewing our release checks to prevent a recurrence.
A fix has been deployed and the web application is loading normally again. Users who still see a blank page should refresh the page (Cmd/Ctrl + Shift + R). We are monitoring to confirm full recovery.
We have identified the cause: a recent release introduced an error in a shared JavaScript file that prevents the web application from starting. Because these files are delivered through our content delivery network, rolling back the release did not restore service on its own. We are deploying a corrective release now and will update as it rolls out.
We are investigating reports that the PlusPlus web application fails to load, showing a blank page. All users are affected. Our API, integrations, and scheduled email notifications are unaffected. We will provide an update within 30 minutes.