@puffffffs You're most likely talking about LiquidBounce b2, that version is really old (5 year old), it has a weird and completely different ScriptAPI support if I remember correctly, so modern scripts will not work on that version.
There is also cross-version, which is an unfinished 1.8.9/1.12.2 LiquidBounce b73 made by CCBlueX, it is really buggy, most scripts won't work at all, and some modules won't even work. It has been removed since April 2022. (Marco reverted the source code to pre-Crossversion and fixed the source code.). By the way, LiquidBounce b73 isn't updated by the developers and only pull requests are accepted most likely.