There is a shortage of downloads from Youtube links.
Because Youtube has updated its software with new software policy. Newly added videos also benefit from the new system, so there is a problem with the links downloaded from this system.
I think that it is necessary to make an update again by paying attention to the update download of Youtube link.
Quote
I have never been a single time fault, even this program never use this program since I first came out. I've been using it for about 10 -12 years without ever encountering an error.