object(Zend_Controller_Action_Exception)#87 (8) {
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  ["message":protected] => string(63) "Action "invalid" does not exist and was not trapped in __call()"
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  ["code":protected] => int(404)
  ["file":protected] => string(49) "/home/tcpscore/library/Zend/Controller/Action.php"
  ["line":protected] => int(485)
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    [1] => array(6) {
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      ["line"] => int(295)
      ["function"] => string(8) "dispatch"
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    [2] => array(6) {
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      ["class"] => string(35) "Zend_Controller_Dispatcher_Standard"
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      ["args"] => array(2) {
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          ["_paramSources":protected] => array(2) {
            [0] => string(4) "_GET"
            [1] => string(5) "_POST"
          }
          ["_requestUri":protected] => string(70) "/welcomehttps:/surveys.mcmaster.ca/limesurvey/index.php/195947?lang=en"
          ["_baseUrl":protected] => string(0) ""
          ["_basePath":protected] => NULL
          ["_pathInfo":protected] => string(62) "/welcomehttps:/surveys.mcmaster.ca/limesurvey/index.php/195947"
          ["_params":protected] => array(4) {
            ["welcomehttps:"] => string(19) "surveys.mcmaster.ca"
            ["limesurvey"] => string(9) "index.php"
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          ["_rawBody":protected] => NULL
          ["_aliases":protected] => array(0) {
          }
          ["_dispatched":protected] => bool(true)
          ["_module":protected] => string(7) "default"
          ["_moduleKey":protected] => string(6) "module"
          ["_controller":protected] => string(5) "index"
          ["_controllerKey":protected] => string(10) "controller"
          ["_action":protected] => string(7) "invalid"
          ["_actionKey":protected] => string(6) "action"
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        [1] => object(Zend_Controller_Response_Http)#83 (8) {
          ["_body":protected] => array(0) {
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          ["_exceptions":protected] => array(0) {
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          ["_headers":protected] => array(0) {
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          ["_headersRaw":protected] => array(0) {
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          ["_httpResponseCode":protected] => int(200)
          ["_isRedirect":protected] => bool(false)
          ["_renderExceptions":protected] => bool(false)
          ["headersSentThrowsException"] => bool(true)
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    [3] => array(6) {
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      ["line"] => int(368)
      ["function"] => string(8) "dispatch"
      ["class"] => string(21) "Zend_Controller_Front"
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      ["line"] => int(294)
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      ["args"] => array(1) {
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          [3] => array(3) {
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          [4] => array(3) {
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          [5] => array(3) {
            ["_route"] => string(18) "/viewContainer/:id"
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          [8] => array(3) {
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          [11] => array(3) {
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          [14] => array(2) {
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            ["_route"] => string(17) "/contact-received"
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            ["action"] => string(15) "contactreceived"
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            ["_route"] => string(26) "/administrator/:action/:id"
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          [22] => array(3) {
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            ["controller"] => string(4) "auth"
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            ["_route"] => string(42) "/course/viewQuestion/:exam_id/:question_id"
            ["controller"] => string(6) "course"
            ["action"] => string(12) "viewquestion"
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            ["_route"] => string(46) "/course/continueQuestion/:exam_id/:question_id"
            ["controller"] => string(6) "course"
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          [36] => array(3) {
            ["_route"] => string(28) "/course/retakeExam/:exam_id/"
            ["controller"] => string(6) "course"
            ["action"] => string(10) "retakeexam"
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        }
      }
    }
    [5] => array(4) {
      ["file"] => string(36) "/home/tcpscore/public_html/index.php"
      ["line"] => int(480)
      ["function"] => string(4) "main"
      ["args"] => array(0) {
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    }
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  ["previous":"Exception":private] => NULL
}

Fatal error: Uncaught Zend_Log_Exception: "/home/tcpscore/log/web.log" cannot be opened with mode "a" in /home/tcpscore/library/Zend/Log/Writer/Stream.php:81 Stack trace: #0 /home/tcpscore/library/Drdesign.php(123): Zend_Log_Writer_Stream->__construct('/home/tcpscore/...') #1 /home/tcpscore/library/Drdesign.php(155): Drdesign::log('Caught exceptio...', 3) #2 /home/tcpscore/public_html/index.php(379): Drdesign::logException(Object(Zend_Controller_Action_Exception)) #3 /home/tcpscore/public_html/index.php(294): dispatchRoutes(Array) #4 /home/tcpscore/public_html/index.php(480): main() #5 {main} thrown in /home/tcpscore/library/Zend/Log/Writer/Stream.php on line 81