Addon for site causing header errors?

[KnoxVegas]

Hello,

We have built our own custom addon for our site, and I'm trying to get rid of these constant errors we are getting on the xenforo side, would anyone be able to help me narrow this down?

I would assume this is because its a guest viewing the page possibly but not sure?

Error Info
ErrorException: Undefined variable: _SESSION - kvtnet/extra/header.php:55
Generated By: Unknown Account, 16 minutes ago
Stack Trace
#0 /..../forums/kvtnet/extra/header.php(55): XenForo_Application::handlePhpError(8, 'Undefined varia...', '/.....', 55, Array)
#1 /..../forums/kvtnet/index.php(13): require('/home/knoxvegas...')
#2 {main}
Request State
array(3) {
  ["url"] => string(48) "http://forums.knoxvtrucking.com/kvtnet/index.php"
  ["_GET"] => array(0) {
  }
  ["_POST"] => array(0) {
  }
}

 

[XFA]

Hi,

You can see from "Unknown Account" that it's indeed a guest.

Apparently this would come from a file located in kvtnet/extra/header.php, up to you to narrow down what does cause an issue in that file, it's on line 55 as you can see.

Clément