Realm Save

I have a community realm, recently, every so often, it kicks everyone out...we log back in and we are set back HOURS from where we were. It has happened multiple times. I click save and exit every few minutes but it does not save. I am not even able to make a back up or change the amount of time between saves. I was in the end, my friends were making a villager trading hall...we keep getting set back again and again....