Problems to load the video of a course

Hi, the whole day today I experience problems to watch the videos of the Swift Foundation course. They do not load.

There is no problem to watch other videos or videos in youtube. So, I guess it is not a problem of my system or connection to the internet
However, the way from Canada to Germany is long and there are a lot of possibilities to cause the problem.

But let me know if there are some temporarily problems with the learning environment or some maintenance work.

Many thanks, best regards,