I searched, and i found an error with a part that Minecraft can't find, and the "multitexture" is set to false, i don't know what it is. And also, there are unused frames, but i understand nothing in the logs. I think i'll give up or i'll try to re-make it, because i think i made something wrong.
I don't know, because the differents parts are in different groups to animate, and even if i did something wrong, the model of the iron golem should have been replaced with an other model or texture, but bugged, but the iron golem keeps its normal model. And i searched in the logs, but i cant find the optifine logs. But thanks to help people like me that understand nothing.
But, I used Blockbench, and the CEM template loader plugin, but it doesn't work, i don't know why, the file may be too big, or i did something wrong. But thank you to try to help the noob that i am in texturing :)