Please make sure that all blocking tools (eg antivirus software, firewall, proxy, vpn, internet enhancers, etc) are deactivated on your PC and your network and try again.
Furthermore, double check that you type your login details exactly as sent to you, without typos or space before or after the email and/or password.
If the problem persists, please send a Ticket to Support, including the exact error message you received and the password you used when you tried to log in, and we’ll be happy to check it for you.