Character Won't Work

I’m making a game and I’m working on the character rig, but the character will not work at all, it stays invisible when it’s not and won’t even though I checked if it was anchored, can anyone help?
Pictures/Video:

You need make an animation for it, it happened to me too…

I have animations made for a older variant of the character, would that work?

I not really sure but you can try…