Low disk space - This computer is running low on free hard drive space.
disk0 - APPLE SSD AP0256J 251.00 GB (Solid State - TRIM: Yes)
Size: 250.69 GB
Free: 42.49 GB
Available: 68.21 GB
CleanMyMac X Menu
The inference here.
The user has tried to clean up the computer to make additional Free Space by using the CleanMyMac application which is sometime references a " BrickMyMac "
In either instance it seems to have not worked and has made a bat situation even worse
The are two schools of thought as to how to fix this
Remove the CleanMyMac application via the Developer Specific instructions
Then, to perform some serious house cleaning of unnecessary application, videos, music, photos etc etc
Or the other option which is not popular for some but is effective
Start Over from Scratch
For Apple Intel computers >> Use Disk Utility to erase an Intel-based Mac followed by How to reinstall macOS
Always make a Time Machine Backup before proceeding
If going this route - I suggest Not using Startup Assist to migrate everything back.
This will probably Re-Introduce ( CleanMyMac ) back into the Operating System
CleanMyMac , aka “ BrickMyMac “
New macOS Malware "Cthulhu Stealer" Targets Apple Users' Data
Un-Like Microsoft Windows, which does have “ Disk Cleanup “ and “ Defrag “ as part of their Operating System
Apple does not and are they required