We are currently experiencing a major outage affecting Proton's services. We're working as fast as possible to fully restore services. We apologize for any inconvenience.
Please follow updates on our status page: https://t.co/6znxJl7JG0
Apologies for linking to Xitter, xcancel has been shut down. Proton Mail seems to be completely offline everywhere.
oof, best of luck to the support team
edit: a fix is out, most services recovered for most users