Serialization failed - yunosh

2015-03-31T11:25:46+02:00 DEBUG: Variable information:
array(3) {
  [0]=>
  object(stdClass)#233 (2) {
    ["response"]=>
    bool(true)
    ["tasks"]=>
    object(stdClass)#237 (4) {
      ["imp:viewport"]=>
      object(stdClass)#2852 (8) {
        ["label"]=>
        string(5) "Inbox"
        ["totalrows"]=>
        int(435)
        ["rownum"]=>
        int(2)
        ["rowlist"]=>
        array(131) {
          [71731]=>
          int(1)
          [71730]=>
          int(2)
          [71729]=>
          int(3)
          [71728]=>
          int(4)
          [71727]=>
          int(5)
          [71725]=>

...
          int(129)
          [34975]=>
          int(130)
          [33579]=>
          int(131)
        }
        ["data"]=>
        array(131) {
          [71731]=>
          array(6) {
            ["flag"]=>
            array(2) {
              [0]=>
              string(8) "personal"
              [1]=>
              string(6) "unseen"
            }
            ["size"]=>
            string(4) "8 KB"
            ["date"]=>
            string(8) "11:07:48"
            ["from"]=>
            string(29) "Belegingrijs door Pers Titels"
            ["fromaddr"]=>
            string(30) "info@vipmag.spotmedia-benl.com"
            ["subject"]=>
            string(25) "Wees wijs beleg in grijs."
          }
          [71730]=>
          array(6) {
            ["flag"]=>
            array(2) {
              [0]=>
              string(8) "personal"
              [1]=>

...

          [62]=>
          object(stdClass)#2806 (7) {
            ["m"]=>
            string(11) "dmZvbGRlcgA"
            ["ch"]=>
            int(1)
            ["l"]=>
            string(15) "Virtual Folders"
            ["v"]=>
            int(1)
            ["ns"]=>
            int(1)
            ["n"]=>
            int(1)
            ["co"]=>
            int(1)
          }
        }
        ["expand"]=>
        int(1)
      }
      ["imp:poll"]=>
      array(1) {
        ["SU5CT1g"]=>
        int(242)
      }
    }
  }
  [1]=>
  int(16)
  [2]=>
  NULL
}

Backtrace:
1. IMP_Ajax_Application->send() /spare/store/web/sites/twistfare/htdocs/horde/services/ajax.php:70
2. Horde_Core_Ajax_Application->send() /spare/store/web/sites/twistfare/htdocs/horde/imp/lib/Ajax/Application.php:134
3. Horde_Core_Ajax_Response->sendAndExit() /spare/store/howtos/programs-3.1/amd64/32/lib/php/Horde/Core/Ajax/Application.php:241
4. Horde_Core_Ajax_Response_HordeCore->send() /spare/store/howtos/programs-3.1/amd64/32/lib/php/Horde/Core/Ajax/Response.php:55
5. Horde::escapeJson() /spare/store/howtos/programs-3.1/amd64/32/lib/php/Horde/Core/Ajax/Response/HordeCore.php:67
6. Horde_Serialize::serialize() /spare/store/howtos/programs-3.1/amd64/32/lib/php/Horde.php:219
7. Horde_Serialize::_serialize() /spare/store/howtos/programs-3.1/amd64/32/lib/php/Horde/Serialize.php:66
8. Horde::debug() /spare/store/howtos/programs-3.1/amd64/32/lib/php/Horde/Serialize.php:259