接口Uncaught SoapFault exception 是什么问题？

调用接口有时候报这个错

Uncaught SyntaxError: Unexpected token <

<br />
<b>Fatal error</b>:  Uncaught SoapFault exception: [HTTP] Could not connect to host in /data/vhosts/dyactive2.vip.*****.com/inc/library/interface/check_verify.php:36
Stack trace:
#0 [internal function]: SoapClient-&gt;__doRequest('&lt;?xml version=&quot;...', 'http://webservi...', 'http://test-uri...', 1, 0)
#1 [internal function]: SoapClient-&gt;__call('checkSessionid', Array)
#2 /data/vhosts/dyactive2.vip.****.com/inc/library/interface/check_verify.php(36): SoapClient-&gt;checkSessionid('136274824', '1EFE297625341D0...')
#3 /data/vhosts/dyactive2.vip.****.com/inc/library/functions.php(436): check_verify::getUserInfo('1EFE297625341D0...')
#4 /data/vhosts/dyactive2.vip.****.com/webroot_dynamic/common_iface.php(65): islogin()
#5 /data/vhosts/dyactive2.vip.****.com/webroot_dynamic/2016/fanle/index.php(81): _init_class('Index', Array, Array)
#6 {main}
  thrown in <b>/data/vhosts/dyactive2.vip.****.com/inc/library/interface/check_verify.php</b> on line <b>36</b><br />

---

令牌？方便贴一下代码吗