Hi
I try to start my server, when everything loads on the console my server start again.
Sponge version: Sponge 1.12.2-2768-7.1.4
Minecraft version: 1.12.2
Console:
Crash-Report:
I do not know what to do, someone please help me 
It seems that part of the world data has become corrupt. e.g.
Exception reading ./world/level.dat java.io.EOFException: null
…
Attempt failed when reading Sponge level data for [world] from file [level_sponge.dat]!
Do you have a backup of the world? If so, try using a copy of that.
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no, its there a possible to fix that?
You can try deleting the level_sponge.dat
I would make a copy elsewhere in case deleting it also doesn’t help.
I would also HIGHLY recommend that going forward you set up the server to take backups of the Minecraft server folder.
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I tried but it didn’t work
I’ve been having a similar issue but I’m not sure how to fix it. If anybody could help me it would be greatly appreciated.
Crash Report:
Yours is different. Yours is complaining about an illegal character in the world name I believe.
Not sure what to tell you then. Are there any other sponge level dat files?
yep, this
Okay, if mines complaining about an invalid character, I’ll just take the worlds properties, import them into a save, then rename it to a simple name
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oh can i just import the data to another world?
So I fixed mine and got the server working and it was working perfectly for the last few days then I got another error message.
Here’s the crash report:
Edit:
Nevermind, I think i figured it out, my DIM-1 level_sponge.dat file was empty