If you have translated the mini-diary, the only thing left to do is to check the "purple leaves" mentionned in it (on the right, below the path leading to the small glade). Depending on the build you have, they may or may not be displayed, but the button still work.
Took some time to check but unfortunately, if you translated the diary and got the text about purple leaves, caterpillars yadda yadda, and still no diary page when you click on them, it looks like a bug. :/ Very sorry I'll have it fixed asap
