Not a Bug Undefined index: manage_team_count

[fixer]

Error Info
ErrorException: Undefined index: manage_team_count - library/XenForo/Visitor.php:678
Generated By: Unknown Account, Yesterday at 11:33 PM
Stack Trace
#0 /hsphere/local/home/iiiers/mymilitia.com/library/XenForo/Visitor.php(678): XenForo_Application::handlePhpError(8, 'Undefined index...', '/hsphere/local/...', 678, Array)
#1 /hsphere/local/home/iiiers/mymilitia.com/library/Nobita/Teams/ControllerPublic/Team.php(661): XenForo_Visitor->offsetGet('manage_team_cou...')
#2 /hsphere/local/home/iiiers/mymilitia.com/library/XenForo/FrontController.php(351): Nobita_Teams_ControllerPublic_Team->actionAdd()
#3 /hsphere/local/home/iiiers/mymilitia.com/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#4 /hsphere/local/home/iiiers/mymilitia.com/index.php(13): XenForo_FrontController->run()
#5 {main}
Request State
array(3) {
["url"] => string(55) "http://www.mymilitia.com/groups/add?team_category_id=28"
["_GET"] => array(1) {
["team_category_id"] => string(2) "28"
}
["_POST"] => array(0) {
}
}

 

[Truonglv]

Seem like you have upgrading failed in some cases.
Just running this query in your DB:

ALTER TABLE xf_user ADD COLUMN manage_team_count int unsigned not null default '0'