"Joint Skype Meeting"

[AKF]

Recently, something happened to my Zoom meeting, and every time I schedule a Zoom meeting, "Joint Skype Meeting" appears on the invite, although a link to the Zoom meeting is indicated next to it. I only want to use Zoom, not Skype. Can anyone help me to change the setting. By the way, my Zoom account is Zoom Professional, not Business. 

Thank you!