Hello Aternos,
Yesterday my wife was playing on our server and I tried to login too but I could not, so far so good, I thought it could be my internet. But when she left, we both tried to backup the world and we couldn't do this either, and now, when we went to play, none of the buildings she did yesterday was there. It's like the server has reset, and the backup problem also happened again, we could not back up (even without having anything different for that). It's already the third time this happens to us and it's becoming annoying, we thought it could be some of the plugins (we ran the sv in Spigot) and we deleted some of them and checked the log (everything seems alright), but it happened again, is there anything you can do for us? Thanks in advance!