No overclocking to my knowledge. I had bought this switch bricked. It would get stuck on the 2nd boot logo every time I tried to boot it. So I installed CFW to see if that would get things going. Every time I try to launch in the CFW it gives me this error
Mystery meat. Yuck!
Does it boot OFW correctly now (i.e. did you fix the brick situation?)
Which guide did you follow to install CFW?
couple quick things to try:
https://switch.homebrew.guide/troubleshooting.html
https://en-americas-support.nintend...to-update-nintendo-switch-in-maintenance-mode