I have this same machine and haven't had any errors come up. I don't think this is related, but I found out from watching a YouTube, there is one more spot to oil. It's on the top, near the bobbin winder. I use a long funnel type oil dispenser to get to that spot. I find it so interesting that in my manuals, it never mentions this spot to be oiled, just the one on top of the machine near the left and then the spot on the bed of the machine. Maybe this helps?