Xhorse Dolphin XP005L, the errors I have seen were 43, and 5. The cutter diameter was the one selected during set up. When told failed, try again, I tried again a few times and got error 5 then after a couple more attempts error 3.
Here Xhorsevvdi tech answers:
1.Insert key blade correctly (wrong way round)
2.Clean up filings after cutting
Hope this could help!