Video IDs containing an underscore are not supported

[maziyar95]

Video IDs containing an underscore are not supported.

Notice: Undefined index: url in /src/Provider/Youtube/VideoInfo.php on line 308

[infoconic]

even in normal youtube URL it says this
Notice: Undefined index: url in /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Provider/Youtube/VideoInfo.php on line 308

Fatal error: Uncaught exception 'Exception' in /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Http/CurlClient.php:203 Stack trace: #0 /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Http/CurlClient.php(113): YoutubeDownloader\Http\CurlClient->getHttpResponseFromCurl(Resource id #52, Array) #1 /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Http/CurlClient.php(76): YoutubeDownloader\Http\CurlClient->sendRequest(Object(YoutubeDownloader\Http\Request)) #2 /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Application/ControllerAbstract.php(105): YoutubeDownloader\Http\CurlClient->send(Object(YoutubeDownloader\Http\Request), Array) #3 /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Application/ResultController.php(174): YoutubeDownloader\Application\ControllerAbstract->getSize('', Object(YoutubeDownloader\Config), Object(YoutubeDownloader\Toolkit)) #4 /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Application/App.php(83): YoutubeDow in /home/infocnjk/public_html/others/YouTube-Downloader-master/src/Http/CurlClient.php on line 206

and when i use https then it says 403 forbidden error... please fix