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

Send link to playlist.

For the better understanding it'll be great to see a screenshot with the error.

Hello, our products do not download sub-titles from Vimeo.

Hello, the extension was repaired, updated or reinstalled from our site. Install via MeddleMonkey.

If you have Tampermonkey, Chameleon or Violentmonkey extensions, delete them.

Current version 8.21.2: https://en.savefrom.net/faq.php#ext_inst_chrome

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?
For the better understanding it'll be great to see a screenshot with the error.

Hello, it's not our fault that youtube decided to get rid of 3gp . There is nothing we can do about it.

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
Could you please send a few links you can't download. We will check it out.
Do you download via the extension SaveFrom.net Helper or the website SaveFrom.net?
For the better understanding it'll be great to see a screenshot with the error.

Not.

Please, use our extension Video Downloader Pro: http://videodownloaderpro.net
Possibly, it will download from the website you want.

Hello, please give us more details.

Hello, Please, use our extension Video Downloader Pro: http://videodownloaderpro.net
Possibly, it will download from the website you want.