If you are having trouble logging into your account, you should reset your password. You can do it by clicking the button Forgot password?. Once you enter your username or email address, you will receive an email that will contain a link to create a new password. Please check your Spam folder just in case the confirmation email got delivered there instead of your inbox.
If you know your password but you are unable to login, you can try deleting your browser cache and cookies and then logging in again. If this problem persists, please send us an email to firstname.lastname@example.org, and we’ll sort it out as soon as possible. Bear in mind that deleting cookies will log you out of all sites, which means that you will have to enter your username and password if you want to log in again.