Are you attached to the net? Haha, seriously though, are you?
Thinking you have the right login email and password (and also you're connected to the internet) there's a couple of points that could be triggering your issues:
Facebook Homepage Login Error
Are you getting a mistake message? If so, check the Facebook help page for descriptions as well as fixes to known problems.
Make certain you do not have any extensions or antivirus programs running that are obstructing Facebook.
Have you tried clearing the application's cache? Most likely to Settings > Applications > Facebook > Clear Cache. If this does not function you can attempt cleaning information as well and as a last resort uninstalling and re-installing the application completely.
Did you register with your telephone number? Ensure you type in the nation code also when logging in.
If the app is telling you to update your e-mail address, this is most likely due to the fact that your email server is identifying your Facebook emails as spam.
If you have actually recently enrolled in Facebook you could require to confirm your account initially. If you have actually recently altered your password, make sure you're trying to visit with the new password and also not the old one.
If you're visiting using an internet browser, see to it you have cookies allowed and that facebook.com is contributed to your checklist of safe sites.
Ensure you have the most current variation of the Facebook app for Android.
