Facebook Desktop Book Now Button

Hi,

I have just integrated acuity with facebook and instagram. On mobile viewer my 'Book Now' button on facebook and instagram works fine and takes me straight to the booking url https://aurelloholistics.as.me/schedule.php (screen shot named 'url ss' attached)

However on desktop viewer it takes me to something different (screen shot named 'ss' attached), on desktop I want it to be connected the same and take people to the correct url / scheduler.

Please can someone point out what is wrong here?

Thank you