can't go to the nether

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    when I enter the portal the game gives an error and disconnects me from the server, if I try more times it closes the server. I've already tried to reup the world, level.dat, and delete the DIM-1 folder, In singleplayer mode it works normally only on the server that doesn't

    Minecraft Forge - 1.16.5 (36.2.35)

    Crash report - https://mclo.gs/nHky2cd

    Mods Installed - alexsmobs-1.12.1.jar
    BetterCaves-Forge-1.16.4-1.1.2.jar
    byg-1.3.5.jar
    chocolate-1.3.0-1.16.4.jar
    citadel-1.8.1-1.16.5.jar
    cloth-config-forge-4.14.64.jar
    curios-forge-1.16.5-4.0.8.2.jar
    DungeonsArise-1.16.5-2.1.49-beta.jar
    DungeonsMod-1.16.3-1.4.43.jar
    FallingTree-1.16.5-2.11.5.jar
    Hwyla-forge-1.10.11-B78_1.16.2.jar
    jei-1.16.5-7.7.1.152.jar
    journeymap-1.16.5-5.8.5p5.jar
    mcw-bridges-2.0.3-mc1.16.5.jar
    mcw-doors-1.0.6-mc1.16.5.jar
    mcw-fences-1.0.5-mc1.16.5.jar
    mcw-furniture-3.0.0-mc1.16.5.jar
    mcw-lights-1.0.3-mc1.16.5.jar
    mcw-paintings-1.0.3-mc1.16.5.jar
    mcw-roofs-2.1.2-mc1.16.5.jar
    mcw-trapdoors-1.0.6-mc1.16.5.jar
    mcw-windows-2.0.3-mc1.16.5.jar
    MysticsBiomes-1.16.4-1.1.0.jar
    TravelersBackpack-1.16.5-5.4.9.jar
    twilightforest-1.16.5-4.0.870-universal.jar
    YungsApi-1.16.4-Forge-13.jar


    thank you in advance for the help :)

    so the temporary solution is that i deleted the byg and the dm-1 folder and went into the server and made it generate a new vanilla nether and it worked.. the sad thing is not having access to all the stuff that byg would add