Are all belts on the printer tightened properly? Did you print via Octoprint? Sometimes this may happen if there’s a short network / WiFi issue. Can also happen with some brands of SD cards. So if you have another one available that might be worth a try.

And can’t you save your print by simply grinding off the superfluous filament? If parts are missing you might also add some glue or putty to fill the gaps. If visual appearance is important for your part you could also apply some spray paint or acrylic paint.