@wfurry hey there! so yess i think i fixed it. it was my fault, i imported modular in hopes of adding an outfit to the avi because i didnt wanna wear the main shirt due to the... print. but i just reup it in a new proj without modular and it worked.
((im not sure how you'd turn it into an actual .unitypackage if that's what you're trying to do )) but to just get the files you'd go File- Open file- choose your .VRCA- then choose one of the options under Export