Hi! This is caused by a weird character in one of the files.
In the game folder, you should see a folder "www".
Within that folder is a folder called "data".
Find the file "Map364.json" and open it in Notepad (or Notepad++, if you have it).
In the 11th line of the file, way over to the right, you'll find a snippet of a line of dialogue beginning with "you helped me".
The "'s" in "it's" in that snippet is what causes the error.
Replace it with the one from the "let's" in the 6th line of the file and save the file and that should fix the error.
It worked for me, at least.
Viewing post in Bug in academy lower left wing
For anyone else having this issue currently if it hasn't been fixed in a future update, JoeSchmoe is basically telling you to get rid of the huge chunk of space between characters. It looks like this in the file: "it' s". Just close the gap by deleting the unwanted spaces so it looks like this: "it's", should work just fine after that. As someone who knows nothing about code or anything related to it I think their instructions were pretty straight forward and easy to follow. I don't think there was anything more detailed than what they already described.