NullPointerException when joining in server

[Feerjais]

Issue type: Server error

• 🐛 Bug Cant join in server

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Short description:

When a player joins my server with the mod installed, the server kicks them and displays the following error:

When I delete these files, the player can join normally, but after restarting the server, the issue reappears.

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Versions:

• This mod: Evilcraft-1.20.1-1.2.49
• Minecraft: 1.20.1
• Mod loader version: Forge 47.3.0

Log file: https://mclo.gs/O29g0zj

[rubensworks]

Thanks for reporting!

[rubensworks]

Could you send me the server logs in which that error message is mentioned?
I can't do much without it unfortunately.

[Feerjais]

The server doesn't show any errors, it just kicks the player. I discovered this because I tried starting the server without this mod, and I was able to join normally.

[Feerjais]

This is the modlist from curseforge
For the server im using arclight with forge 47.30
https://mclo.gs/FGw7u5r

mclo.gs

Unknown Log [#FGw7u5r]

141 lines

[Feerjais]

Server log
https://mclo.gs/NBx1fY5

mclo.gs

Arclight 1.20.1 Server Log [#NBx1fY5]

1339 lines | 457 errors

[Jack-McKalling]

The log says this:

The following mods have version differences that were not resolved:
| evilcraft (version 1.2.49 -> 1.2.50)
| evilcraftcompat (version 1.2.49 -> 1.2.50)
| Things may not work well.

I don't know what that means exactly, but I guess it does explain why stuff isn't working correctly.

[Feerjais]

This message appears because I updated the mod to the latest version released today, but the bug is not fixed. It only gets resolved by deleting the files evilcraft_GlobalCounterData.dat and evilcraft_WorldSharedTanks.dat and letting them regenerate, but after a while of playing, the bug reappears.

[rubensworks]

Thanks for the new logs @Feerjais, but I don't see the error message being mentioned in there.

Can you check again if you can produce a log (client or server) in which that specific error message is being mentioned?
I need the stacktrace leading up to that error.
Without it, I can not fix it unfortunately.

[Feerjais]

The server and client logs don't show any errors; this only happens when trying to join the server. I've tried many things, and the only solution was to remove the mod, which allows all players to join normally.

I can give you access to the server for testing if you'd like.

[rubensworks]

The server and client logs don't show any errors;

That's weird. Such disconnection errors usually show up in the logs though.

I can give you access to the server for testing if you'd like.

I don't have the time bandwidth to debug issues at this level unfortunately.

Let me put this issue on hold until someone (including other people that would encounter this issue) could provide more details.

[Feerjais]

When I delete the globalcounterdata and worldsharedtanks files, the error stops appearing. However, when those files regenerate after a while of using the mod, the same issue reappears, and it prevents players from joining the server.

[Feerjais]

maybe this can help

[rubensworks]

It doesn't unfortunately :/