Many facebook users ask to me why is my facebook app not working. So. try given solutions
Update your Facebook app
Update your browser
Restart your App
Restart your Phone
Check phone storage
For more solutions, your can visit our website to get your answer.
Visit here: https://ityug247.com/why-facebook-is-not-responding-how-to-fix/
Try refreshing your browser or reopening the site; on a mobile app, close and reopen the app. You can also check to see if Facebook is offline and then restart your device, update apps, and clear your cache.
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9 Ways to Fix Facebook App Crash on Android
Reboot Phone. If you ask a tech geek to fix any problem on your gadget, the first solution they often give is to reboot the phone.
Log Out From the App.
Clear Cache.
Clear Data.
Update the App.
Reinstall App.
Install an Older Version of Facebook.
Disable Power Saving Mode.
This may help you,
Rachel Gomez