my model is getting screwed

[neat pawn]

for some reason when i play the scene my model becomes this abomination even though it SHOULD NOT LOOK LIKE THIS

it is supposed to look like this

this problem only started when i decided to add animations to it so i deleted the previous model that had no animations then went to blender animated the model and when i imported back even without adding its animations yet it started just dying when the scene played i do not know how or why its doing this and im frankly losing my god damn mind

this is the original bones on blender