Enter your question here am getting "502 Bad Gateway" from Cloudfare on my domain

oh the domain website is: www.baronyhouse.co.uk

So anybody can reproduce the error by trying to access the domain for the first time from any mobile device… when the Cloudfare 502 Gateway error occurs, simply refresh your browser and the site will load.

The problem I have, is I never want this error to occur on the first visit, it may put people off.