Having had the same issue, and calling Telus, a very friendly technical rep told me it was a system wide problem that was being worked on. This morning everything is fine. To all those saying Telus sucks (and worse!) when dealing with any computer eq...
I have had that problem today. Tried to watch final episode (10) of The Twelve on Telus, then the latest episode of the Gilded Edge, John Wick and Winter King on Crave - same error message.