We’re sorry you’re having problems streaming Qello Concerts. There are a few things that can cause these kinds of problems.
Is your WiFi internet connection running at a fast broadband speed and are videos streaming well in other apps?
If videos do not play well for you in other apps, then your Internet connection may not be running at an optimal speed. Try rebooting your Internet connection and Wifi router to see if that resolves your issue.
If videos are streaming just fine in other apps and you're only experiencing problems with Qello videos, then please let me know if you get that error for every video you try to play or only some.
For more assistance, please email firstname.lastname@example.org