Hello everyone,
I have an Aternos server and i was playing with my friends for about 2 hours .After a lot time another one wanted to join in the server so i changed max players number and then i pressed the restart button . When server started again all our building had disappeared 
.There were also a lot notifications that our server was saved but nothing saved.And the last backup was when we started to play.Can anyone please help?
Sorry for my English 