Hi, Well it is a bad one. Of course, nothing is guaranteed in this situation but you may try resetting your preferences and try the original project file and auto-saves again. You can follow below steps below from Adobe Community:
Reset your Premiere Pro preferences.
With Premiere Pro closed, navigate to the preferences file and move it to another location.
By default, the preferences files are located here:
- Windows: C:\Users\<username>\Documents\Adobe\Premiere Pro\<version>\Profile-<profilename>\Adobe Premiere Pro Prefs
- macOS: /Users/<username>/Documents/Adobe/Premiere Pro/<version>/Adobe Premiere Pro Prefs
The next time you open Premiere Pro, it creates a new preference file.
More details here:
https://helpx.adobe.com/premiere-pro/using/reset-preferences.html
Then launch Premiere Pro by launching from the app – not from any existing project. Basically you want to open a fresh new project and see if that works.
If it does – clear your ‘cache’ files
https://community.adobe.com/t5/premiere-pro-discussions/faq-how-to-clear-your-media-cache-in-premier…
now try launching one of your problem projects by using ‘open project’ from the file menu.
If that does not work try ‘importing’ one of your problem projects.
In a fresh Premiere Pro project go to the file menu and select ‘import’ – choose one of your old projects and follow the prompts to import ‘entire project’.