Hi, thanks for playing!
Unfortunately, this is an issue that occurs with save states in the game, and for some reason this happens to some players. This issue usually only occurs on the Steam version, and can sometimes be fixed by just doing it over and over again. I realize that this is not workable and frustrating. I have looked into this issue many times before and Construct 2 does not offer robust enough debugging tools for me to figure out exactly what is causing this issue. This was my first "big game" and it's likely I made a mistake somewhere, but it's unlikely that I'll be able to find it in time to get an update out soon.
I apologize, please let me know if you do progress eventually, but I also understand if you'd rather drop it.
Side note: I will be pushing an update that will allow people to erase their save shortly. Perhaps the update may solve your issue, but it may only help if you restart :(
There are some shortcuts in the game though! If you are stuck here then I can take you to the next phase of the game without too much time lost hopefully. Please let me know if you would like to know, as it is a bit of a mechanic spoiler in my opinion.