Retrieve information from people not currently logged in

[oliverk120]

The plugin has been working very well for me for calls such as:
$this->Linkedin->call('people/~', etc..
Where the information being retrieved is from the currently logged in user.
However when I try to retrieve information from other users e.g.
$this->Linkedin->call('people/id=abcdefg', etc.. it gives me an internal error:

Error: An Internal Error Has Occurred.

Stack Trace
#0 /home/content/m/d/p/mdpless/html/weavapp/Controller/UsersController.php(165): LinkedinComponent->call('people/id=abcde...', Array)
#1 [internal function]: UsersController->LinkedinLogin2()
#2 /home/content/m/d/p/mdpless/html/NoteSnack/lib/Cake/Controller/Controller.php(473): ReflectionMethod->invokeArgs(Object(UsersController), Array)
#3 /home/content/m/d/p/mdpless/html/NoteSnack/lib/Cake/Routing/Dispatcher.php(107): Controller->invokeAction(Object(CakeRequest))
#4 /home/content/m/d/p/mdpless/html/NoteSnack/lib/Cake/Routing/Dispatcher.php(89): Dispatcher->_invoke(Object(UsersController), Object(CakeRequest), Object(CakeResponse))
#5 /home/content/m/d/p/mdpless/html/weavapp/webroot/index.php(96): Dispatcher->dispatch(Object(CakeRequest), Object(CakeResponse))
#6 {main}