Looks to be an issue with RDS and too many people connecting ot the dashboard at once? Here's the URL i see:

https://app.supabase.io/?error=server_error&error_description=failed+to+connect+to+%60host%3Dprod-2.${MAYBE SENSITIVE?}.ap-southeast-1.rds.amazonaws.com+user%3Dauth_admin+database%3Dpostgres%60%3A+server+error+%28FATAL%3A+remaining+connection+slots+are+reserved+for+non-replication+superuser+and+rds_superuser+connections+%28SQLSTATE+53300%29%29