This error shows up when another meeting or webinar is already in progress under that particular Zoom host. Zoom does not allow you to enter multiple meetings as a host. Make sure you end the other meetings or webinars before entering a new one as a host.
This is Adeel, the author of the popular LearnDash myCRED Integration addon and Adaptive Learning with LearnDash. Former BadgeOS contributor and Ninja at WooNinjas. I have been working as a web developer for the past 8 years now. I am passionate about applying the principles of progressive education to online learning and I believe e-learning should evolve according to the learning paradigm of the 21st century