Spells and Shields Mod Difficulties

The Aternos forums are now deprecated

Learn more about this change here.

For help regarding Aternos, we recommend you to visit our support center.

    Aternos server cannot run Spells and Shields, newest version. I have not found the cause yet, perhaps the TOML, but if you attempt to join an Aternos Forge 1.20.1 server with the newest Spells and Shields mods you are kicked with the message
    Internal Exception: io.netty.handler.codec.EncoderException: java.lang.ClassCastException: class com.google.gson.JsonObject cannot be cast to class net.minecraft.nbt.Tag (com.google.gson.JsonObject is in module [email protected] of loader 'MC-BOOTSTRAP' @782663d3; net.minecraft.nbt.Tag is in module [email protected] of loader 'TRANSFORMER' @806996)
    Looking for mods similar to Spells and Shields, and I'm still yet to find a solution to this problem.