UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10575.55.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Platform: Google Chrome OS 64-bit

Steps to reproduce the problem:
Signing into the computer after enter it back screens.
No resolution to problem after many troubleshooting attempts
Error page states the OS is missing or damaged

What is the expected behavior?
To be able to sign in without black screening and work appropriately

What went wrong?
Pressing enter after entering the Password makes black screen however I am currently on the internet without problems as a GUEST.

Did this work before? No 

Chrome version: 67.0.3396.87  Channel: stable
OS Version: 10575.55.0
Flash Version: Chrome 67 on ChromeOS 10575

Its my Mother's computer and it needs fixed asap as she is driving me nutso over this problem :)