No Log when restart

When I restart my home-assistant I would not come back up. so u searched the forum where they suggested to stop hassio and delete the Database. I did this but it did not help so I decided to remote the log file to because this was 430MB in size. but when i unplug and plug the raspberry pi back in (I cannot acces it anymore via SSH or HTTP frontend) neither the database or the logfile are created. and hassio will not come up