In looking over this issue on the Internet, it seems to me likely that with all that banging you either loosened the motor so the belt is no longer tight, or got it to slip off altogether.
If you look at this video, you can see that it only takes a putty knife and less than 5 minutes to open the front of the machine and be able to check the motor and belt at the bottom of the machine. If you see broken metal or plastic pieces, I’d guess the machine is toast. If you can see that the belt is off the motor or is obviously loose, then that is probably the issue.
If the belt is merely loose or off the pulleys, it looks to be an easy fix, if you can operate a wrench or know someone who can. Even if it is just a lose belt, I would replace it (as opposed to merely re-tightening it), since they are cheap (<$10) and you don’t want to have to be doing this twice.
A few words of advice. One, use the same tools as shown in the video. Not necessarily the same brand, but same type. That is, it looks as if the putty knife is 1.5", so don’t try using a flat screwdriver (something I have done) since it can (and will) cause the enamel to flake off, dent the case, and perhaps result in the machine rusting in that location. For the wrench, use a box-end of the appropriate size; do not ues an adjustable wrench as it will only cause you grief.
Second, while you have the front off, look around inside and clean any accumulated dirt, lost socks, trash, or anything else you find in there. You don’t have to shine everything up, but get everything that might result in problems in the future. When you didn’t know that stuff was in there, it was fine, but once you know about it, it is certainly going to cause a problem.