Hello Pratham,
Did you do the translations in your application for the indonesian language, because you need to them for a big part yourself, Mendix is not able to just translate your pages.
Also check the documentation:
https://docs.mendix.com/refguide/language-settings/
So if you did not do the translations yourself then it does not show any of them, if you did do it check your application in the modeler to see if it had effect.
Hope this helps
Good luck!