Need various information

[palistov]

Select your diary paper. Go to the 'Entity' tab. At the bottom there is the DiaryText field. In there, put 'MyDiary', as long as your lang file's corresponding diary entry is labelled Diary_MyDiary_Name & Diary_MyDiary_Text. The label between the underscores is what you put in the DiaryText field.

Also, make sure you start your custom story from the game menu instead of loading it via the debug menu when in another story/map. It can cause issues with lang file entries and such.