Are you attached to the internet? Haha, seriously though, are you?
Assuming you have the ideal login email and also password (as well as you're attached to the net) there's a couple of points that may be creating your troubles:
Can't Sign Into Facebook
Are you obtaining a mistake message? If so, inspect the Facebook help page for explanations and fixes to recognized problems.
Make sure you do not have any type of extensions or antivirus programs running that are blocking Facebook.
Have you attempted removing the application's cache? Most likely to Setups > Apps > Facebook > Clear Cache. If this does not function you can attempt clearing information as well and also as a last option uninstalling as well as re-installing the app completely.
Did you join your contact number? Ensure you enter the nation code also when visiting.
If the app is telling you to upgrade your e-mail address, this is more than likely due to the fact that your e-mail web server is classifying your Facebook e-mails as spam.
If you've just recently enrolled in Facebook you could need to confirm your account first. If you've just recently altered your password, see to it you're attempting to visit with the new password as well as not the old one.
If you're logging in by means of an internet browser, make sure you have cookies made it possible for which facebook.com is included in your list of safe websites.
Make certain you have the most current version of the Facebook app for Android.
