Game Crash

Minecraft crashes when I join without connection to the internet. But when I join with internet connection, it works better. The internet connection comes from a WLAN router and mobile data.
The game crashes when I am still in the game Menu or joined a Minecraft world. I want to play
offline in my Minecraft worlds. Fix this bug.
Phone: Huawei Mate 20 Lite
Player name: UndoingVessel46