I'm glad you like it. Players like you who deciphered the diary told me it was too easy, and I was worried that the letters I gave might be too difficult this time, especially since I used less common words, etc. But apparently, it's not a problem for you :D I would like to create much more interesting decryption mechanics in the future, but for now, I did what I could devoting time to other aspects of the game also.
Another update is coming in a week, so I hope you'll like its content as well.
As for the error, is it at a specific point in the story? Did this error occur sometimes when leaving any building, or only when leaving the player's house, for example?
The worst errors are those that do not occur repeatedly. Those that clearly occur repeatedly are easy to find the cause of, but when something works constantly and then suddenly stops working from time to time, when the code is still the same few lines, it is more difficult.
Of course, these are not excuses, just my lack of experience, so thank you for letting me know about this because I would like to eliminate every error, especially those that prevent us from continuing to play. The game cannot have such bugs.
I will look into this more closely and try to make sure it is not there in the next update.