Besides mj's always great advice, clear at least 30 GB of space.
Also trash these files & restart...
~/Library/LaunchAgents/mega.mac.megaupdater.plist
/Library/LaunchDaemons/uk.co.canimaansoftware.ClamXAV.Engine.plist
~ tilde indicates hidden Home Library.
Apple hid the Users' Library folders...
Method 1:
- From the Finder, select the Go menu at top of the screen, and choose Go to Folder.
- In the window that opens, enter ~/Library, and click Go.
Method 2:
- Go to the Finder (or desktop).
- Hold the Option key on your keyboard, and click the Go menu at the top of the screen.
- With the Go menu open, you'll notice that pressing and releasing Option will display or hide the Library choice in this menu.
4 Select Library from the Go menu (while holding down Option) to access the hidden folder.