Help: "The currency of event tickets is not the same one. Please try to re-create the ticket."

[AshleighF]

I'm trying to publish a Zoom meeting/webinar, and I'm getting this error; "The currency of event tickets is not the same one. Please try to re-create the ticket."

I don't understand, as the currency of the event tickets is the same currency I use for my account. 

Any ideas?