Go to Settings > Apps > Facebook and tap Clear Cache . If the issue persists, uninstall the main app and transition permanently to Facebook Lite.
Open your device's folder using a file manager app. Tap on the downloaded Facebook APK file. Review the app permissions and tap Install . Once completed, tap Open to launch the app. Better Alternatives for Android KitKat Users facebook apk for android 444
You can look for old versions of the standard Facebook app, but this approach comes with significant drawbacks. Go to Settings > Apps > Facebook and tap Clear Cache
If you must use a dedicated application on your legacy device, you have two primary options. Option 1: Facebook Lite (Recommended) Tap on the downloaded Facebook APK file
This means Facebook’s servers have deprecated the login protocol for that APK version. You must try a newer (but still KitKat-compatible) APK or switch to Facebook Lite.
Uptodown's Legacy Facebook Page is a reliable place to find these older files. Step-by-Step: How to Install Facebook APK on Android 4.4.4 Enable Unknown Sources: Go to Settings on your phone. Navigate to Security (or Applications).