Are you attached to the internet? Haha, seriously however, are you?
Thinking you have the right login email as well as password (as well as you're attached to the net) there's a couple of points that may be creating your issues:
I Can't Log Into My Facebook Account
Are you getting an error message? If so, check the Facebook help page for descriptions and also fixes to well-known problems.
Ensure you do not have any kind of expansions or antivirus programs running that are obstructing Facebook.
Have you tried clearing the app's cache? Most likely to Setups > Apps > Facebook > Clear Cache. If this doesn't function you can attempt clearing data as well and also as a last resort uninstalling as well as re-installing the app totally.
Did you join your telephone number? Make sure you type in the country code as well when logging in.
If the app is informing you to update your e-mail address, this is most likely because your e-mail web server is classifying your Facebook emails as spam.
If you have actually recently enrolled in Facebook you may need to confirm your account initially. If you have actually just recently transformed your password, make certain you're attempting to visit with the brand-new password and also not the old one.
If you're visiting using a web browser, see to it you have cookies made it possible for which facebook.com is added to your list of risk-free websites.
Ensure you have the most current version of the Facebook app for Android.