Issue: Undefined index: search_type

ErrorException: Undefined index: search_type - library/vw/XenForo/Search/DataHandler/vwPage.php:108 
Generated By: Alfa, 2 minutes ago

Stack Trace
#0 /library/vw/XenForo/Search/DataHandler/vwPage.php(108): XenForo_Application::handlePhpError(8, 'Undefined index...', '/home/...', 108, Array)
#1 /library/XenForo/ViewPublic/Helper/Search.php(16): vw_XenForo_Search_DataHandler_vwPage->renderResult(Object(XenForo_ViewPublic_Member_RecentContent), Array, Array)
#2 /library/XenForo/ViewPublic/Member/RecentContent.php(8): XenForo_ViewPublic_Helper_Search::renderSearchResults(Object(XenForo_ViewPublic_Member_RecentContent), Array)
#3 /library/XenForo/ViewRenderer/Abstract.php(229): XenForo_ViewPublic_Member_RecentContent->renderHtml()
#4 /library/XenForo/ViewRenderer/Json.php(229): XenForo_ViewRenderer_Abstract->renderViewObject('XenForo_ViewPub...', 'Html', Array, 'member_recent_c...')
#5 /library/XenForo/ViewRenderer/Json.php(92): XenForo_ViewRenderer_Json->getDefaultOutputArray('XenForo_ViewPub...', Array, 'member_recent_c...')
#6 /library/XenForo/FrontController.php(624): XenForo_ViewRenderer_Json->renderView('XenForo_ViewPub...', Array, 'member_recent_c...', NULL)
#7 /library/XenForo/FrontController.php(176): XenForo_FrontController->renderView(Object(XenForo_ControllerResponse_View), Object(XenForo_ViewRenderer_Json), Array)
#8 /index.php(13): XenForo_FrontController->run()
#9 {main}
Request State
array(3) {
  ["url"] => string(216) "https://forum.com/members/devilgoose.286141/recent-content?_xfRequestUri=%2Fmembers%2Fdevilgoose.286141%2F&_xfNoRedirect=1&_xfToken=1%2C1519590185%2Ce99abe55e2da0c4aa33aa3b1d37da845e244cc5d&_xfResponseType=json"
  ["_GET"] => array(4) {
    ["_xfRequestUri"] => string(27) "/members/devilgoose.286141/"
    ["_xfNoRedirect"] => string(1) "1"
    ["_xfToken"] => string(53) "1,1519590185,e99abe55e2da0c4aa33aa3b1d37da845e244cc5d"
    ["_xfResponseType"] => string(4) "json"
  }
  ["_POST"] => array(0) {
  }
}