Hi,

If there are redirects you really need to check your page. I checked the code at 
view-source: https://thegorbals.co.uk/thegorbalscalendar/month.php

there is this script: 

if (self === top) {
var antiClickjack = document.getElementById("antiClickjack");
antiClickjack.parentNode.removeChild(antiClickjack);
} else {
top.location = self.location;
}

So if you are in an iframe it should jump out again. So please remove this code an retry.

Best regards, Michael