New Leads to zoom

I am trying to integrate new leads from Zenler to Zoom for automatic registration for a meeting. However I am getting the msg as shown in the screenshot

By default, registration is not required when setting up a webinar. The Create Webinar Registrant action only works with webinars where registration is required. Zoom has a help guide on how to set up registration for a webinar - https://support.zoom.us/hc/en-us/articles/202835649-Customizing-webinar-registration

Now I am getting the msg as per the screen shot that the last name is required though last name is not a mandatory( required) field while mapping.

I have even tried after mapping the last name. It is still the same msg.

Attachments

Check your meeting registration form as looks like you have made the last name a required field. The error appears to say the same.