If you already reinstalled the special edition and still have the same problem you can use the debug menu by pressing f when the game starts up and if you click on edit savefile you can choose a level to load. To go back to where you were before you have to press next 2 times on the level loader and click on TheForest.unity located on the top-left. This will also bypass the passcode part and send you straight into where you were supposed to be after entering the code.
I'll definitely do this. Thank you so much! Really enjoying the game too.
Edit: I don't think I even tried to reinstall either and I feel like an idiot. I'll probably reinstall anyway you assure this doesn't happen again but thank you for all your help.