Hello.
- Make sure you have internet data bundles.
- Turn of your Mobicel clicka.
- Remove the battery and the SIM card for at least 1minute.
- After 1minutes or more put the SIM card and the battery.
- Turn on your Mobicel clicka.
- Give it at least 20 seconds to load apps
- Launch Facebook app.
If still having trouble with your Facebook app.