In my case the screen instantly turns black a few seconds later after I access the website and the same thing happens over and over again if I refresh the page so I can't use it anymore for a few hours. I really don't know what the issue is because this doesn't happen always but it's still annoying to not be able to make a bet for a few hours.
I have same bag (black screen in a few seconds later after page refresh) . I recorded the video with this error and hope that technical support will fix it problemhttps://www.youtube.com/watch?v=A2LdYEwT9do