Magento2 - Cron readiness check failure

Cron is not working properly showing error in /var/www/domain.com/var/log/update.log

[2019-09-25 07:07:02] update-cron.ERROR: Cron readiness check failure! Found non-writable paths: /var/www/domain.com/bin/magento [] [] 

There is already pemission to bin/magento file.

log in file /var/www/domain.com/var/log/.update_cronjob_status

{ "readiness_checks": { "error": "<br/>Found non-writable path(s):<br/>/var/www/domain.com/bin/magento", "file_permissions_verified": false }, "last_timestamp": 1569386101, "current_timestamp": 1569386522 }