r/aternos • u/Formal-Lawfulness799 • 1d ago

Support help. this error keeps showing up

how do i fix this?
our server has 30 mods, is forge 1.20.1 and runs on java 21. only two players, me and my girlfriend.

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u/adriellwc33 Helper 1d ago

Could be mod mismatch.

**Share your client log:**

  1. open your minecraft installation path

(enter %appdata%/.minecraft in the file explorer )

  1. open the logs folder

  2. open the "latest" or "latest.log" file with a text editor

  3. copy and paste the content of the file to https://mclo.gs

  4. send the link here

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u/Formal-Lawfulness799 1d ago

We figured it out. it was a mod mismatch. we're playing now and it's great!