Updating Error - Your System is being updated

Have been getting this error after migration, Even tried using “bench --site site-name set-maintenance-mode off”, but no luck. Please help. The bench/sites/[site_name]/site_config.json is showing maintenance-mode off yet am not able to operate it

Is it showing maintenance-mode off or "0" or 0 ?
It should be showing 0. Other value will still equals to on

Thank You for your reply… It was showing 0…
But yesterday i am made a new server and migrated the backup on automatically the issue was resolved. I had tried 2-3 time migrating on different server, even on VM, everytime it was showing the error but suddenly on the last try, the issue got resolved on its own