Cannot Save properly

[Knoxzilla]

Hey Adobe, Fix This. This has been an issue since early December 2020, why still not working is besides me and every other subscription customer. This has put me behind schedule and wasted my time.

[Kevin Stohlmeyer]

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.

[davescm]

".........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...

Dave