Some advice to the translator:
When you label chapters, do not use whole numbers unless it's the full chapter. If you split them, the very first part needs to be ".1"
1.1- first part of chapter one
1.2 - second part of chapter one <------------------------------This is how the first chapter should have been label.
1.3 - third part of chapter one
1
1.1 <----------------------------This is how you're doing it, but it misleads readers into thinking "1" is the whole chapter not the beginning of a split.
1.2