- To see all of the apps you've recently used, double-click the Home button.
- Swipe right or left in the Apps previews to find the Facebook app.
- Swipe up to close the Facebook app preview.
- Alternatively, you can simply close all apps.
Restart your iPhone 8 after you have terminated all background apps. A restart can assist clean out any small issues that have occurred.
To do so, hold down the Side (Power) button until the Slide to Power Off screen appears. To totally switch off the gadget, move the slider to the right. Wait around 30 seconds, then press and hold the Side button until the Apple logo appears.
That should give your iPhone 8 a new lease of life. Now, launch the Facebook app and check to see if the problem has been resolved and the app is functioning normally.