Am not able to log in to zorin after updates, keyboard,terminal not working

Hello,I am using Zorin lite and yesterday I updated packages via terminal,I encountered some problems which lead me to running commands like --fix-missing,configure -a,at last I was able to update ,I did also upgrade it thou not all were upgraded,I switched off my laptop and when I came to power it on after sometime everything was okay with zorin logo showing and when it came to logging in, everything was in a mess,username and my picture was gone, keyboard was frozen and terminal was not working too,my touchpad is working,I looked for the onboard keyboard which I navigated with my touchpad and left key in my mouse,typed in my username and password but it showed incorrect password despite everything being correctly typed.I came to realize that grub terminal works perfectly fine .Please help!This is how it looks after powering it on.