Game crashes

When I open the Minecraft launcher everything goes normally but then when I press play it crashes and says "An unexpected issue occurred and the game has crashed. We're sorry for the inconvenience". this is unusual for me since my game doesn't usually do this. This is the game output :

15:10:23 launcher Preparing to launch minecraft client for 1.12
15:10:23 launcher Checking installations.
15:10:23 launcher Minecraft client 1.12 is ready to start.
15:10:23 launcher Starting!
15:10:24 launcher Using default game log configuration client-1.12.xml (outputs XML)
15:10:25 bhz Setting user: GeneralBob360
15:10:26 bhz LWJGL Version: 2.9.4

Even though with the minecraft Installer repaired it it still had issues.
Please help