When I tried to open my world when I don't have an internet connection, my minecraft crashes. When i try to create a new world, my minecraft crashes. but if I'm connected to wifi, it doesn't crash. Please help.

Whenever I try to open minecraft worlds without wifi or any internet connection, my minecraft crashes.

I expected to open my world, so I could play while i was on a car trip, when I didn't have wifi to play other games. I expected my world to just open up as usual
Describe what you thought should happen here

My minecraft crashed unexpectedly. I tried repeatedly to open my world, to open other worlds, to make new worlds. each time, minecraft crashes.
Describe what happened here

Open minecraft
1. Open minecraft without Wifi or any other internet connection
2. I went to "Singleplayer"
3. I selected a world to play
4. I clicked "Play selected world" and boom, my minecraft crashed.