The loading video clip is blocked 51 times with URL:MAL

Upon loading the video clip After the video clip is loaded but before it is shown on screen in " h**p://www.bilibili.tv/video/av861962/ " avast blocked it 51 times then stopped then another 51 times…
I usually goto this website to watch some video, but the block seem to start a few day ago. Is this block valid?

Edit: Actually it is not only one video clip, but some. Here are a few that are blocked:
hp://www.bilibili.tv/video/av870349/
h
p://www.bilibili.tv/video/av879972/
h**p://www.bilibili.tv/video/av937753/

Edit again: The block is not always happened