Checking system storage status

Hello. So i havent played my ps4 for 2 days now. Came today and turned it on jist for it to start in safe mode checking for system storage for some reason. Console is always turned off so there cant be power outages. Came into ac origins today and just wondering is it normal to take for the game about 1min to load from present day back to egypt. Also there is no boot loop it turns on after checking system storage status and games run fine so far no xbm freezes or anything. Just wondering what would cause that?