Reinit your password
To reset your password, from the login page, click on Forgot your password?
A pop-up window opens and asks for your email address, to allow a password reset email to be sent.
Once the mail is written, click on Send.
You should receive an email like the one below, so click on the button Reinit your password.
This opens a new page in your browser, as below (with your email address instead of the red rectangle).
All you have to do is write your new password, confirm it and click on Validate.