Hey there,

Recently HackedServer introduced an experimental feature: a specific fake forge handshake sent to newer forge versions (1.13+) that are not supposed to have their modlist detectable. It worked ...for some versions. Unfortunately this is buggy with a few 1.15.2 forge builds (users get kicked with a "Illegal packet received" error). If you have too many problems with this feature, you can now disable it from the config. I didn't want to remove it because it is something that can be useful to a lot of people anyway.

You'll need to reset your settings.yml. If you don't want to (I know that some of you have big configurations and don't want to lose time to redo everything), you can just add this line:
Inside Forge subsection.

I hope you'll enjoy this update.

Sincerely,
Thomas