Hiya SavefromNet Team, the YouTube Download-Button doesn`t functioned

Browser: Yandex 194 Windows User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 YaBrowser/19.4.0.1825 (beta) Yowser/2.5 Safari/537.36 Extension: yabrowser-sf 8.20