Troubleshooting
Tap Send me the link in the banner, open the email and follow the link, then come back and tap I've confirmed it. Planning works without it, but publishing a wedding page and posting in the community both need a confirmed address. Accounts made with Google or an emailed link never see this.
The banner at the top of your dashboard has the button. Tap Send me the link, and an email goes to the address you signed up with. Only accounts made with a password see it: signing in with Google or an emailed link confirms your address on the way in.
You can keep planning without confirming. It only gates the two things that put words in front of other people: your wedding page and the community.