Just for fun I clicked on your URL you provided above:
https://rec-tube.com/watch/2018080812210273/?7. Warning, folks. It's a porn site. So I launched playback on this particular video. Then I went into fullscreen, to help VDH recognize the video. It took rather a long time to launch & then kept stopping during playback. There was a single variant listed by VDH. I launched the download of the video, then closed the web page. This is my standard procedure. I don't want the playback to be competing with the download for my limited bandwidth.
It seemed to be taking an inordinately long time to download so I looked in the Windows Resource Monitor. This site apparently throttles their downloads. I was seeing about 100K throughput on a conection that is usually about 530K.
After about 5 minutes VDH reported that the download had completed successfully. I had about a 25M file but there was no duration listed & the Details tab of the file's Properties was empty. This prepared me for what I now expected, which was that VLC could not play the file. I've mentioned before that VDH should not be telling me a download completed successfully when it is in possession of sufficient information to report that in fact the download did NOT complete successfully. VDH told me the expected size of the file when I launched the download. The resulting file was not that size. VDH should have reported FAILURE to download, not success. It looks like this low quality web site is too unreliable to let you download stuff with high hopes of success. Thinking I might try again, I was met with a page claiming I had reached my daily limit of 60 seconds of viewing time & I was encouraged to buy a subscription. Not happening.
My advice is this: Find a better site from which to get your porn fix. This one looks like a low quality teaser to get you to subscribe to something that might be higher quality. But with the "freebie" being such poor quality, I wouldn't have much confidence their paid site is a whole lot better.