In this, we are going to change the iPhone language to a different language and then switch back to the language of your preference (what it originally was). I don’t know the reasoning behind how or why this even works but it seems to fix the issue for a lot of folks.
This is also one of the highly recommended hacks to fix this issue.
To do this, go to the recent apps screen by using the gesture (or by double tapping the home button or older iPhones) and then swipe up the App store to close it fully. That is why it is important to quit the App store completely and then re-open it again. SEE ALSO iPhone app not showing up or missing on home screen (Fix)