Server Error Log - Missing ip address

Error info
Zend_Service_ReCaptcha_Exception: Missing ip address - library/Zend/Service/ReCaptcha.php:460
Generated By: Unknown Account, I dag klokken 17:21
Stack Trace

#0 /data/home/planetmi/public_html/library/Zend/Service/ReCaptcha.php(502): Zend_Service_ReCaptcha->_post('03AHJ_Vuuu0BtaI...', 'short ggsques')
#1 /data/home/planetmi/public_html/library/XenForo/Captcha/ReCaptcha.php(53): Zend_Service_ReCaptcha->verify('03AHJ_Vuuu0BtaI...', 'short ggsques')
#2 /data/home/planetmi/public_html/library/XenForo/Captcha/Abstract.php(129): XenForo_Captcha_ReCaptcha->isValid(Array)
#3 /data/home/planetmi/public_html/library/XenForo/ControllerPublic/Register.php(343): XenForo_Captcha_Abstract::validateDefault(Object(XenForo_Input))
#4 /data/home/planetmi/public_html/library/XenForo/FrontController.php(347): XenForo_ControllerPublic_Register->actionRegister()
#5 /data/home/planetmi/public_html/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#6 /data/home/planetmi/public_html/index.php(13): XenForo_FrontController->run()
#7 {main}

Request State

array(3) {
  ["url"] => string(47) "http://www.planetminecraft.dk/register/register"
  ["_GET"] => array(0) {
  }
  ["_POST"] => array(15) {
    ["username"] => string(0) ""
    ["d31df4215b2132822479b681eb66305e"] => string(11) "MagnusQuist"
    ["6bf5aa63fef202fc07b3a6509361faa5"] => string(21) "******@yahoo.dk"
    ["0f3b543affbf472ff6868c56e1bc02c0"] => string(4) "male"
    ["dob_month"] => string(1) "xx"
    ["dob_day"] => string(2) "xx"
    ["dob_year"] => string(4) "xxxx"
    ["9c22090d1be0e0658d3896b80cc3c3b4"] => array(1) {
      ["minecraft_id"] => string(9) "xxxxxxxx"
    }
    ["custom_fields_shown"] => array(1) {
      [0] => string(12) "minecraft_id"
    }
    ["54fc1878ffd6c3a3a7af770e18616528"] => string(16) "Europe/Amsterdam"
    ["recaptcha_challenge_field"] => string(249) "03AHJ_Vuuu0BtaI-konizC87IAb8Y2Y8QwffIxGjg1QNbU4np6y0pM8AOR1iey_SRjXHTYatCJs1FlkDKOQ6i7pCZ4IsXVICrPLh73NNCR6BJFsqGwXJLXUvSlX-d89qvZWHKnp6WsLO33VBjATB3bVTlnOh72CeCLbtg-CgEM7VCG2bH0Sl7UzP34eYpSIpODjFFjA_imPm3uKOyJqZOtZTHnLRoVBRpUvNBsky4Zgz3d_DzVC_7D_tQ"
    ["recaptcha_response_field"] => string(13) "short ggsques"
    ["agree"] => string(1) "1"
    ["_xfToken"] => string(8) "********"
    ["reg_key"] => string(32) "e33b9d8e3ed72eafe30fd613b38c286a"
  }
}