Unable to open Mixcloud.com
I am running Safari 12.1 on MacOS 10.13.6 and I am unable to open the site https://www.mixcloud.com/
I get the error Safari Can't open the Page the error is : "The operation could not be completed. (kCFErrorDomainCFNetwork error 303.) (kCFErrorDomainCFNetwork:303)
I seem to be able to open any other site OK. I have two accounts on my mac, one being an admin account and one a standard account. Oddly, I get the same error when trying to access the site from either account. I have done a search on here and found other posts regarding the 303 error and tried manually resetting Safari (in the standard account) with no luck. Have also tried rebooting in Safe Mode with no luck in resolving things.
Any advice would be appreciated.
Thanks in advance.