Hello, in order to help you better I need the following information.
Please, send me the information listed here:

http://en.savefrom.net/user.php?info=1

Do you download via the extension SaveFrom.net Helper or the

website SaveFrom.net?

Hello. Reinstall the extension, remove the Tampermonkey extension and
Install SaveFrom.net Helper again.
How to install the extension to Google Chrome browser read here:

http://en.savefrom.net/faq.php#ext_inst_chrome

Hello, this site is not on the list of supported resources.

The full list can be found here: http://en.savefrom.net

Please, use our extension Video Downloader Pro: http://videodownloaderpro.net
Video Downloader Pro is a magic tool helping you download any media content from any
website all over the Net.
Possibly, it will download from the website you want.

Hello, please click here: http://en.savefrom.net/faq.php#rightholder

Hello, if you are downloading through Savefrom.Net site, try to re-insert a link to a video and press download.

Or, set the extension to download directly from Youtube site.

The information how to install the extension to Google Chrome browser
can be found here: http://en.savefrom.net/faq.php#ext_inst_chrome

Hello, Google Chrome Canary is established through a Tampermonkey him our script Savefrom.
The information how to install the extension browser can be found here: http://en.savefrom.net/faq.php#ext_inst_chrome

Hi. Thanks for contacting Savefrom.Net Support.
We can make our support more effective if you provide us information
about your browser and extension.
You can find out this information on this page:
http://en.savefrom.net/user.php?info=1

Please, send us links for files, which can't be downloaded.

Hi. Thanks for contacting Savefrom.Net Support.
We can make our support more effective if you provide us information
about your browser and extension.
You can find out this information on this page:
http://en.savefrom.net/user.php?info=1

Please, send us links for files, which can't be downloaded.

Do you download via the extension SaveFrom.net Helper or the

website SaveFrom.net?