Latest Facebook app update 275 will not work on my iPad Air—app will not open

That’s up to Facebook. They have to fix their app.

Try to use safari to access facebook instead of the app. Personally I abandoned that app years ago due to inconsistent performance and a lack of control.

Wait for Facebook to fix it

Look for a third party facebook app

Use safari or another browser

Same here, iPad Air2, iOS 10.3.3 ...