If you have S3 backups enabled try you can try to run this from the rails console:
./launcher enter app
rails c
SiteSetting.backup_location = 'local'
refresh the site and see if you can access the dashboard
If you have S3 backups enabled try you can try to run this from the rails console:
./launcher enter app
rails c
SiteSetting.backup_location = 'local'
refresh the site and see if you can access the dashboard