Internal Exception interruption after playing for a few minute

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  • :aternos: Hello Aternos Team!

    So basically I was playing Forge 1.12.2 when I got interrupted by this error message:

    Internal Exception: io.netty.handler.codec.DecoderException: java.util.zip.DataFormatException: unknown compression method


    The day before yesterday I played the game smoothly for one hour but then yesterday I started getting Java errors right on TLauncher launch. Reinstalling TLauncher worked but today I started getting this error message while playing after a few minutes into my server.

    Would you mind listing some possibilities and solutions to this problems?

    Thank you in advance