Login issue on zoriin os 15.3 lite 32 bit

[nooooob]

need help (emergency). I installed Zorin OS 15.3 lite 32 bit 2 days ago. it was working so impressively. but today it said to restart my laptop because of the latest update that just got installed. after restarting it booted the frame and then Zorin logo and then A BLACK SCREEN with some text.
The texts are:
Zorin OS 15.3 TOSHIBA-NB520-A143 tty1
TOSHIBA-NB520-A143 login:

Please help. I have no idea what to do?

[zabadabadoo]

Maybe this thread can help you.

Lite - Black screen after update

I run an HP desktop, I did about 6 updates to Zorin today, and did the restart it required, and when getting to encryption password, entered and accepted by the software. then Zorin finishes uploading, and goes to a black screen. After pressing the power button the Zorin logo comes on, and shuts down the PC. So what do I need to do to get my computer back up and running? Help me out!

Or:

Zorin OS 16 black screen with blinking cursor

This is happening to me with zorin 16. Worked for a while but now is going to black screen with flashing cursor

EDIT:
Also this:

Zorin OS does not return after updating the system

I built a computer and installed Zorin OS 15 Lite (at the time). It always worked perfectly. Last week I had the idea to install both (Lite and Core) with shared /home. I did this on all my notebooks successfully. But on my main work machine, the one that was running Zorin OS Lite 16 (I had already updated) something very strange happens. Every time I've tried, and I've tried more than 3 times in different ways, the same thing happens. I installed the system, it restarted perfectly. I downl…