Error: Invalid controller specified (robots.txt)

Array(
      0 : Array(
          file : '/home/sites/eli.chrisweiss.com/mainline/src/vendor/ZendFramework/library/Zend/Controller/Front.php'
          line : 954
          function : 'dispatch'
          class : 'Zend_Controller_Dispatcher_Standard'
          type : '->'
          args : Array(
              0 : Object(Zend_Controller_Request_Http)
              1 : Object(Zend_Controller_Response_Http)
          )
      )
      1 : Array(
          file : '/home/sites/eli.chrisweiss.com/mainline/src/vendor/ZendFramework/library/Zend/Application/Bootstrap/Bootstrap.php'
          line : 97
          function : 'dispatch'
          class : 'Zend_Controller_Front'
          type : '->'
          args : Array(
          )
      )
      2 : Array(
          file : '/home/sites/eli.chrisweiss.com/mainline/src/vendor/ZendFramework/library/Zend/Application.php'
          line : 366
          function : 'run'
          class : 'Zend_Application_Bootstrap_Bootstrap'
          type : '->'
          args : Array(
          )
      )
      3 : Array(
          file : '/home/sites/eli.chrisweiss.com/mainline/src/pub/index.php'
          line : 33
          function : 'run'
          class : 'Zend_Application'
          type : '->'
          args : Array(
          )
      )
  )