Minecrat stuck in loading screen

Hey Guys

first at all: Im german so my english isnt that good. Hope you understand what I'm typing

 

So I just wanted to play Minecraft and launched the Launcher.

Then I clicked play, It worked how it normally worked.

Then the "Minecraft 1.16.4" window opened (all normal) 

The Loading Bar randomly stopped, at 3/4, Then it doesent respondet anymore

so I tryed another time to launch minecraft. It doesnt worked

I tried it like 10 times, none of them worked. It just stop loading in the loading screen.

I put an screenshot in  any more