Hi,
Are you the owner of this website? - remoteapp.orthocare.com.au. ?
If I browse to the site, I am seeing a 522 error - which suggests a timeout when connecting to the origin. If you are the site owner, you should ensure that the origin server is listening on the HTTP/S ports that the is operating on, and specifically making sure that Cloudflare IP’s listed here are not blocked from reaching your origin - IP Ranges
regards,
Damian