Click on the login option at the top left of the screen. Then I forgot the password to the system! click. You will be asked for your email address. You will then receive an email authorizing you to change your password.
No. It is not necessary. Only the responsible author will register in the system. But all authors should be aware of their responsibility for the article. The order of the names of the people and the responsibilities of each of them should be clear in the article.