Subaru impreza/ manual side window stuck

You are having a problem with the "window regulator" remove the door panel, see if the window regulator bolts fell out. they are usually in between the plastic door covering and the door or inside the door on the bottom. they are four bolts that a 10 mm wrench fit, they are short about 1/4 of an inch long, if they fell out you can simply put them back in (I recommend using lock tite on them) These bolts are located in the middle of the door a little towards the front. If your bolts are still in place you probably need a window regulator.