Error when trying to run server

So yesterday I created server through hamachi to play with friends, everything worked perfectly fine till today morning when I tried to run the server using start.bat to allocate more RAM I got this error.
https://pastebin.com/RdpRgDcN
When I run the server with the server exe it works fine.
Any solutions? It’s hard to play on mods with default RAM.
Thanks in advance.

Can i see your start.bat file?

@echo off
java -Xmx2048M -jar forge.jar -o true
PAUSE

Try deleting the file level_sponge.dat and restarting the server.

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It worked, thank you very much, the only problem is, when I enter the server I get missing registries warning.
Is there anyway to prevent this kind of problems in the future?

What does the warning look like? It should have a few entries of the format modname:itemname.

it says:


Does it matter? Or should I ignore it?

I think it should be OK to continue. Just make a backup of the world in case anything goes wrong.

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Okay, thank you very much for your help :slight_smile:
Best regards