Blackscreen After booting with clover

[tllrs]

I'm very new to this whole hackintosh thing, so this question might be very stupid. I did all the things which @Majkwin mentioned in his installation guide (at least I think I did them right). But when I boot enter clover an select my USB stick the screen turn dark and nothing happens. I hope anyone can help me! I was really happy when I saw that there is a guide for my notebook!

PS: sorry for my bad English, I'm from Germany :D