I can't start my game

Hello,
Since couple days My game, in every launcher has decided to stop starting.
Like the launher is opening but it crash when i click "start" or whatever to start the game.
I already tried to do a ticket on lunar client support and they told me to ask here.
I hope you will understand the situation please I can't play Minecraft and I'm actually sad 
My game is not working in every version, from 1.7 to 1.21