unable to open minecraft

hey, I am unable to open Minecraft.

I can click the app, and then the first page opens. then after clicking play the game will load and then disappear. I will click on the app again and when I go to click play for a second time it says that there is a game already open.

Or after when I click play the game goes away and comes back, like usual, but then it stays on the second page( with MOJANG written in the middle)

I have tried removing and reinstalling Minecraft and java, and tried the game in different versions. nothing has helped it