It's extremely cold (-30c) and my car won't start even with a 100% charged battery and strong crank. What is happening?

Also have the block heater plugged in obviously. The car has only sat for 48 hrs and now won't start

Doesn't make sense and seems like there is no fuel coming in. Is it possible that the fuel lines have frozen? Just from my googling everyone says that's impossible cause gas doesn't freeze until - 70.

Even though this car is quite a beater, I've never had problems starting as long as the battery is good. And for comparison my mom has a 2017 rogue and she doesn't even plug in and her car started. What gives?