is this a version problem? Geckolib entity crashes MCreator's Minecraft launcher

premise: i'm a beginner

shortest way to ask this question, here's the problem I am having: https://www.youtube.com/watch?v=3lyaK2wBlDQ I am using the 2023.3 version and Blockbench 4.8.3

the problem: Mcreate's Minecraft launcher crashes as soon as I open it, I know it's because of Geckolib because I first tried to make a non Geckolib-ed biped mob(all buggy and stuff) but had no problems other than the texture and the fact that I can't code

I tried to follow many instructions from the web, nothing worked, I assumed the problem is that I'm using a too new version, this because I got tired of passing hours of my free time trying to solve this problem instead of actually having fun creating, I gave up, I want the quickest and easiest solution, I'm not going anywhere