Hi Darryl, Tiffany here from the YouCanBook.me team. There are two issues at play on your account we need to resolve.
Issue 1 - You have several calendar accounts integrated with YouCanBook.me.
Two of these calendars of those have access to the calendar: Darryl MacKenzie @ iCloud. This makes YouCanBook.me think you are linking to 2 calendars when you’re only linking to one.
To resolve this issue - go to your Integrations page, and remove the integrated calendar @ cox.net - This won’t cause any disruption because the correct calendar is still being linked through the other account.
Issue 2 - there seems to be an all-day event set to busy on your @ icloud calendar that is blocking your availability. Please check events at the top of your Google calendar that may be set to busy - or an invitations you may have declined. Tips here: https://support.youcanbook.me/article/355-no-availability