Files not opening after reactivating Toon Boom subscription

So, I reactivated my Toon Boom subscription and all the previous project folders are still the same. However, the harmony files don’t open themselves. The only way I can open it is if I create a new scene and import the old ones. But they still won’t open after I close the scene (everything is saved and I have to do the importing all over again.) New to ToonBoom, so I really don’t know why this is happening. Any advice on how I can fix it?

Edit: it says scene 4; version 4. I’m guessing it has something to do with that?

With your subscription you get Silver Support. This is just the user forum. Contact Toon Boom directly you want to avoid corrupting your project: