MacBook Pro keeps hanging at blue screen when starting up. How do I get around this?

My Macbook has been working just fine for a while, but recently today, it just started crashing on me a lot. This is NOT a kernel panic, but the screen suddenly goes blue and hangs. Then I am forced to restart it.

When I restart it normally, it stops going on the gray screen. I try Safe Mode, but it then suddenly goes to said blue screen again.

I can't even get back onto my computer. How do I solve this issue?