PHOTOS restore from crash ! WHAT A MESS!

It is not possible to delete the Photos.app. The Photos.app is protected by the System Integrity protection. And you need to use the version of Photos that has been installed by the System.

The "Photos Libraries.photoslibrary" packages are the libraries, where your photos and videos are stored, not in the app. You need to find a working copy of your Photos Library.

Have you restored your Photos Library from a Time Machine backup, as Yer_Man recommended?

You wrote "Copying photos from Masters into C Drive again". If you opened the Photos Library and tried to recover the photos from the Masters folder in the package, you will have recovered only the original image files. All adjustments, face names, metadata, albums are stored outside the Masters folder, in the database files. For the videos the dates may be random, because the videos do not have a standard for the capture date. Try to find photos you have taken at the same time to recover the correct date from the photos. Some cameras write the correct date for a video into the filename. In that case you can try to set the date again from the information in the filename.

How are you trying to restore from Time Machine?

You just need to restore the Photos Library, not the complete Mac.

• Before you try to restore the library, rename the one you are now having, so it will not be overwritten or save it somewhere else.
• Select the folder, where your Photos Library has been before you had to restore your Mac and open this folder in the Finder.
• Then enter Time Machine and click in the Timeline on a date when your photos have still been there.
• Ctrl-Click the Photos Library to restore it and select "Restore"

Sorry, it is right now not convenient for me to switch the system language to English, but I hope you can see in the screenshot, where to click. My screenshot has been taken with macOS15.3.2, but as far as I can remember, it looked very similar in your system version.

One thing about restoring from Time Machine-- it's tempting to see the "photoslibrary" and then drag it to your current Pictures Folder. That might work for some files,

but for a "photoslibrary" you really should use the Restore button. I've had spurious results just dragging and dropping it.

The Photos library is not part of the system folder.

Restore a photo library from Time Machine on Mac – Apple Support (UK)

The reference to the 'C drive' is concerning. There isn much things a Mac. Can you explain?

The new forum software is sorting the discussions by default by "rank", not chronologically.

You may want to set the switch to to "Sort by Oldest", to see all replies in the order proper chronological order:

You can also change this in your User Preferences.

• Click your avatar in the upper right corner of the page to open the Profile and Preferences. Go down to the "Other Preferences" and select the sort order you want. It will be applied, whenever you sign into your account.

Have you restarted your Mac after you restored the library? That might take care of the "Closing Library".

Have you by any chance been using iCloud Photos? If your library is in iCloud, the easiest way to restore a working copy of it would be to create a new, empty library and to let it sync with iCloud Photos.

Keep both until you know what is restored.