world save don't work

[sheydhql]

Describe the issue

I played for several days on the same save, but now when I started the server I saw this text :

Could not load world, creating a new one : System.NullReferenceException Object reference not set to an instance of an object.

the files of the world, as I understand it, are now in the folder " worldBackups.zip " , but when I pull them back into the " world " folder, I see this error text over and over again, I don't understand what it means, just a couple of hours ago everything was fine.

Windows 10
Sabnautica Legacy
Nitrox 1.7.1.0

I used a translator to write this.

[NinjaPedroX]

Looks like your save files are corrupted. Please join our Discord server, where we can help you further.

[sheydhql]

Looks like your save files are corrupted. Please join our Discord server, where we can help you further.

this help channel?