u/Lari_that_one

I bought this Polaroid, the owner of it told me that the camera had never been used before so he had no guarantee that the camera worked. When it arrived I noticed that there was already a pack of film inside it (it looked very old). When I put the new film package in, it work normally, but the film is not ejected. Do you guys have any idea what the problem might be related to? What should I do? ( the assistance for these cameras is very scarce in my area, so I would have to try to repair it myself)

O modelo é MT500 e essa peça fica no regulador da barra da calça, já tentei pesquisar em vários lugares e não consegui achar ninguém que explique