Are you connected to the internet? Haha, seriously however, are you?
Assuming you have the appropriate login email as well as password (and you're connected to the web) there's a few things that might be triggering your problems:
I Can't Login In My Facebook Account
Are you obtaining an error message? If so, check the Facebook help page for descriptions and also fixes to recognized problems.
Make sure you do not have any type of expansions or antivirus programs running that are obstructing Facebook.
Have you attempted clearing the app's cache? Most likely to Setups > Applications > Facebook > Clear Cache. If this does not function you can attempt cleaning data as well and as a last resort uninstalling and re-installing the application entirely.
Did you register with your contact number? Make certain you type in the country code as well when visiting.
If the application is telling you to upgrade your e-mail address, this is more than likely since your email web server is classifying your Facebook e-mails as spam.
If you have actually recently enrolled in Facebook you might need to confirm your account initially. If you've recently transformed your password, see to it you're attempting to visit with the new password and not the old one.
If you're visiting through a web browser, ensure you have cookies made it possible for and that facebook.com is added to your list of secure websites.
Make certain you have the most recent variation of the Facebook app for Android.
