警告：DOMDocument :: loadHTML（）：htmlParseEntityRef：expecting';' 在实体

we are using an file to create image site map

i got this errors on image-sitemap.xml file

XML Parsing Error: syntax error
Location: http://netyab.net/sitemap-image.xml
Line Number 2, Column 1:Warning: DOMDocument::loadHTML(): htmlParseEntityRef: expecting ';' in Entity, line: 24 in /home2/netyabne/domains/netyab.net/public_html/base/sitemap/image.php on line 25
^

and this one in our source

Warning: DOMDocument::loadHTML(): htmlParseEntityRef: expecting ';' in Entity, line: 24 in /home2/netyabne/domains/netyab.net/public_html/base/sitemap/image.php on line 25

Warning: DOMDocument::loadHTML(): htmlParseEntityRef: expecting ';' in Entity, line: 133 in /home2/netyabne/domains/netyab.net/public_html/base/sitemap/image.php on line 25

how can solve it ?

http://netyab.net/sitemap-image.xml

line 24 and 25 in image.php file

        $doc = new DOMDocument();
    $doc->loadHTML($result ['content']);