When sewing anything, the machine just stitches knots and skips. Called the manufacturer's troubleshooting line and they suspect the timing belt. Is this easy to fix on my own? We moved a few times so it had a few jostles so it may be possible that this could have something to do with its new knotting while stitching scenario. Any other possibilities- I don't want to go through the time in searching for the part and repairing if it could be a slew of other things.

Sewing Machines - White Sewing