Missing 2nd home screen

Here's how to hide/unhide a page:

1. Touch and hold an empty area on your Home Screen.
2. Tap the dots near the bottom of your screen.
3. Tap and Tick the circle under the page that you want to unhide.
4. Tap Done.

Please see the pic below which is self-explanatory

Organize the Home Screen and App Library on your iPhone

If you have followed the procedure that was recommended in the responses above and still do not see the missing Home Screen, then it is gone permanently. I recommend that you begin pulling the apps out of the App Library and setting up your second Home Screen again.

Axel F.

On your iPhone’s Home Screen, Touch and Hold until all the apps are shaking. Tap on the Dots above the task bar at the bottom. This will reveal all available Home Screen pages. Ensure that each of them have a check mark so that they are included in your Home Screen views.

Axel F.

How many dots (Pages) do you see on your iPhone? How many do you expect to see.

Check for it under the App Library. Next to the last page of the Home Screen. If it is in the App Library Touch, Hold and Drag the icon to Home Screen. That's it.