Happen in both Normal and Safe Boot - could be hardware and could be software or could be Lack of Empty Space on the Internal Drive.
Suggest downloading the Application Etrecheck directly from a well Respected ASC Contributor.
The application is free or paid from added features.
Run the application with Full Disc Access ( Security & Privacy - Full Disc Access ).
It will take a Snap Shot - both the hardware and software.
The Report will Not Reveal Any Personal Information.
Post back the Full Report - copy and paste - using the Additional Text Icon ( 3rd Icon to last )
We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.
Any Third Party Applications that will interfere with the normal operation of the OS, alter, modify, remove or delete or attempt to do so is an invitation for disaster and may require a Reinstallation of the OS.
This includes AntiVirus, Disk Cleaners, Disk Optimizes, UnInstaller etc.
And CMM definitely falls into the category. A Testament of the damages this specific application can cause - read the first 600 posting on these forums.
