HELP!!!!!!! My armature isn't working right!!!!!

Can someone please look at this and see what’s wrong.cait bones refurb bones.blend (1.34 MB)

automatic weights are not working cuz of the arm is linked to the torso but the sleeve is just extruded out you could either change the model or use weight painting

hope that helps i used it to learn weight painting and i practically dont use automatic weights anymore

Thank you so much i had no idea of what to do but everything is good now, thank you!!!