Have you done an e-steps calibration, or other basic checks to make sure it’s not overextruding?
I’m not sure how much experience you’ve had with this new machine, but out of the box it’s not calibrated, and will need a few basic things checked. Many people have threads on it, mine is here: Snapmaker 2.0 Initial Calibration Settings / Experiences
Just this morning I had stripped filament because of an overextrusion issue, maybe that’s on my mind and your issue is something else.
Regardless, your nozzle is now likely clogged, try doing a cold pull(https://all3dp.com/2/3d-printer-clogged-nozzle-how-to-perform-a-cold-atomic-pull/). If that doesn’t work you may need to change hot ends while you can clean out the blockage.