Cannot Save properly

".........why still not working is besides me and every other subscription customer"

This does not affect "every other subscription customer". There are millions of Photoshop users most of who can use the new software without issue.

There is a help page here on your specific issue

https://helpx.adobe.com/photoshop/kb/program-error-opening-psd.html

There is also a thread in the feedback forum which is being responded to by Adobe developers for those with issues:

https://feedback.photoshop.com/conversations/photoshop/photoshop-cant-save-file-due-to-program-error-windows/5fd7c45db5962575128000c3

Dave

I had the same issue recently - My CC app stopped responding and had an error code. I ended up uninstalling and reinstalling the CC desktop app and it resolved this.