If you already have the account and password of the training platform, and the account is still valid, you can log in directly with the account and password. If it can't be played, it may be that the relevant course content is not opened on the platform, but generally these will be prompted. For example, the course has not started yet or you don't have permission. If there is no problem, you can contact the person in charge of the platform or contact customer service to reflect the situation. Of course, you can also ask the students who study and train with you if they have encountered such a situation.
E-Learning Sea of Clouds —— Online Learning and Training Management System for Expressway Posts