This error occurred, due to unable to get the remote image of youtube link. so check the youtube link or curl request is not completed as check the curl request has all access privilege .

$image = $this->curl->read();
    if (empty($image)) {
        throw new LocalizedException(
            __('The preview image information is unavailable. Check your connection and try again.')
        );
    }

This error occurred, due to unable to get the remote image of youtube link. so check the youtube link or curl request is not completed as check the curl request have all access privilege .

$image = $this->curl->read();
    if (empty($image)) {
        throw new LocalizedException(
            __('The preview image information is unavailable. Check your connection and try again.')
        );
    }