Zorin OS boot problem

I have had zorin installed for a week. But today when I booted up I got this error message.

.tout waiting for device /dev/disk/by-uuid/7c5a-0100 inking quer console dari dependency failed for filen /dev/disk/by-uuid/7c5a-0100 d1 dependency failed for/boot/efi. dependency failed for local file systems. 100.715179] console: switching to colour frame buffer device 170x40.

So I restarted laptop it made it to login screen , then it froze. I turned off laptop, turned back on but now I just get a black screen. What can I do???