First it’s a right of passage, everyone will have a blob sooner or later. My guess is the print lost adhesion and then stuck to the nozzle. You got off easy, just lost a sock. You can get more on the store, they’re cheap.
Watch Malcs video so you do know how to fix it should it happen again and you aren’t so lucky. Support will probably just tell you it’s ok, I doubt they’d send more socks but you never know. You can print in the meantime, but do put a sock on it.