My Minecraft keeps crashing, help!!!

For the last week, I had a problem with lauching Minecraft, it kept crashing and saying "An unexpected issue occured and the game has crashed. We're sorry for the inconvience." I tried reinstalling Java, reinstalling Minecraft, loads of other ways to fix that, nothing didn't work. I don't understand this crash because for the past 5 months it worked. I would like to answer me on e-mail [removed] to help me to fix this crash. Thanks.

Luka Sasic