Internal code error: Project too old

After a 1 week break from CH, I went to open my project that I've been working on all year and my .proj file will not open.

I get the message 'Internal code error: Project too old to open this version of the app'. My previous files from Time Machine have the same error.

When I try opening my backup files I manually created on my disc, they simply act like they open like a ghost file. No error but no files showing. This happens on all of my back ups. I even created a new project from a few puppets I saved but the project doesn't save at all even though it looks like it did. This project will reopen in CH until I try opening my original project, and then its gone and nowhere to find the file.

The only thing weird that happened this week is that my Mac forced me to update on restart and it didn't look like a normal update. The computer had a loud long beeping sound and the update screen went enlarged. I am now on OS 10.13.6

I have tried opening in both the original 1.5v and 2.0v

Has anyone have this happen before and is there a fix out there? All of my files are in iCloud

Thanks,

Ian