social-sharing-add-another-service's code and custom-social-icons's code notwork

hi：

social-sharing-add-another-service’s code and custom-social-icons’s code can not use it？

last time ， i have 3 problem Been helped engineer，thanks very much again~

link is：

https://kriesi.at/support/topic/how-to-addingchange-social-icons-and-share-links%EF%BC%9F/

so，my code is，this code is in my child theme fauctions.php，does not work

// Register new icon as a theme icon
function avia_add_custom_icon($icons) {
    $icons['wechat']	 = array( 'font' =>'wechat', 'icon' => 'ue821');
	$icons['weibo']		 = array( 'font' =>'weibo', 'icon' => 'ue826');
	$icons['baidu']		 = array( 'font' =>'baidu', 'icon' => 'ue822');
    $icons['qq']		 = array( 'font' =>'qq', 'icon' => 'ue824');
    $icons['renren']		 = array( 'font' =>'renren', 'icon' => 'ue827');
    $icons['qweibo']		 = array( 'font' =>'qweibo', 'icon' => 'ue823');
	return $icons;
}
add_filter('avf_default_icons','avia_add_custom_icon', 10, 1);

// Add new icon as an option for social icons
function avia_add_custom_social_icon($icons) {
    $icons['wechat']	 = 'wechat';
	$icons['weibo']		 = 'weibo';
	$icons['baidu']		 = 'baidu';
    $icons['qq']		 = 'qq';
    $icons['renren']		 = 'renren';
    $icons['qweibo']		 = 'qweibo';
	return $icons;
}
add_filter('avf_social_icons_options','avia_add_custom_social_icon', 10, 1);
//在社交图标选项中新增选项20151128-Register new icon as a theme icon
add_filter('avia_social_share_link_arguments', 'avia_add_social_share_link_arguments', 10, 1);
function avia_add_social_share_link_arguments($args)
{
	$args['wechat'] = array("encode"=>true, "encode_urls"=>false, "pattern" => "http://www.jiathis.com/send/?webid=weixin&url=[permalink]&title=[title]&uid=1561992");
    $args['weibo'] = array("encode"=>true, "encode_urls"=>false, "pattern" => "http://www.jiathis.com/send/?webid=tsina&url=[permalink]&title=[title]&uid=1561992");
    $args['baidu'] = array("encode"=>true, "encode_urls"=>false, "pattern" => "http://www.jiathis.com/send/?webid=baidu&url=[permalink]&title=[title]&uid=1561992");
    $args['qq'] = array("encode"=>true, "encode_urls"=>false, "pattern" => "http://www.jiathis.com/send/?webid=cqq&url=[permalink]&title=[title]&uid=1561992");
    $args['renren'] = array("encode"=>true, "encode_urls"=>false, "pattern" => "http://www.jiathis.com/send/?webid=renren&url=[permalink]&title=[title]&uid=1561992");
    $args['qweibo'] = array("encode"=>true, "encode_urls"=>false, "pattern" => "http://www.jiathis.com/send/?webid=tqq&url=[permalink]&title=[title]&uid=1561992");
	return $args;
}
function avia_add_custom_icon($icons) {
	$icons['wechat']	 = array( 'font' =>'wechat', 'icon' => 'ue821');
	$icons['weibo']		 = array( 'font' =>'weibo', 'icon' => 'ue826');
	$icons['baidu']		 = array( 'font' =>'baidu', 'icon' => 'ue822');
    $icons['qq']		 = array( 'font' =>'qq', 'icon' => 'ue824');
    $icons['renren']		 = array( 'font' =>'renren', 'icon' => 'ue827');
    $icons['qweibo']		 = array( 'font' =>'qweibo', 'icon' => 'ue823');
	return $icons;
}
add_filter('avf_default_icons','avia_add_custom_icon', 10, 1);
?>