Cant open GTA5

So, I tried to open GTA5 with Infinity so i can use mods but for some reason every time i enter the game that message pops up: The game ended unexpectedly. No matter what option i choose it pops up again. For an example: i try to enter the game through infinity. the message pops up, i click safe mode button, the message closes and opens again in half a second. And before you ask: Yes, i bought the game on steam.

Start the game first and load into the campaign. After that press play in Infinity