Periodically check the "Where You're Logged In" section within the account settings to view active devices and remotely log out of unfamiliar hardware.
Double-check your spelling and caps lock. If you forgot your password, tap the Forgot Password? link on the login screen to initiate a reset via your registered email or phone number. Issue: The App Crashes or Won't Load login facebook lite link
This URL takes the user directly to the login page of the lightweight version, bypassing any newsfeed or landing page. Periodically check the "Where You're Logged In" section