Unable to invite attendees from iPhone app

[Nurse-Lena]

I just switched from Android to iPhone, and I am unable to add attendees to a meeting I have created in the iPhone app. The arrow to send the email invite is greyed out, so my only option is to cancel the invite. I can add the recipient, and the entire email invite is there, I am just unable to send it. I would love some guidance or support with this.