We encounter this once in a while, especially when it’s because of site propagation.
But here’s a quick solution. Kindly buffer the video first n_n
Here’s what I usually do when I get the Server Error of my website when I try to view it.
#it is also recommendable for those who just got their domains set up with the hosting accounts, but can’t see the index/cgi immediately.
#if it doesn’t work, reconnect your internet without removing the dns and then it should be ok 🙂