XF 2.2 Unknown column title on XF:UserGroup

[RisteDimitrievski]

I got errors in admin control panel when i try to use users functions like search, display all members etc.

InvalidArgumentException: Unknown column title on XF:UserGroup in src\XF\Mvc\Entity\Finder.php at line 1640

In my entities are the following:

<?php
namespace usergrouplegend\Entity;
use usergrouplegend\XF\Entity\XFCP_User;
use XF\Mvc\Entity\Structure;
class User extends XFCP_User {
    public static function getStructure(Structure $structure){
        $structure = parent::getStructure($structure);
        $structure->table = 'xf_user';
        //$structure->columns['user_group_id'] = ['type' => self::INT, 'default' => null, 'changeLog' => false];
        $structure->contentType = null;
        $structure->relations += [
                              'Group' => [
                                  'entity' => 'usergrouplegend:UserGroup',
                                  'type' => self::TO_ONE,
                                  'conditions' => 'user_group_id',
                                  'primary' => true
                              ]
            ];
        return $structure;
    }

UserGroup entity;

<?php
namespace usergrouplegend\Entity;;

use usergrouplegend\XF\Entity\XFCP_UserGroup;
use \XF\Mvc\Entity\Structure;
class UserGroup extends XFCP_UserGroup{
    public static function getStructure(Structure $structure){
        $structure = parent::getStructure($structure);
        $structure->table = 'xf_user_group';
        $structure->getters = [
            'PermissionSet' => [
                'getter' => true,
                'cache' => true,
                'setter' => true
            ]
        ];
        $structure->primaryKey = 'user_group_id';
        $structure->contentType = null;
        $structure->columns['user_group_id'] = ['type' => self::INT, 'autoIncrement' => true, 'default' => null, 'changeLog' => false];
        $structure->relations = [
                          'Users' => [
                              'entity' => 'usergrouplegend:User',
                              'type'  => self::TO_ONE,
                              'conditions' => 'user_group_id',
                              'primary' => false
                          ]
            ];
        return $structure;

}
    public function hasPermission($group,$permission){
        return $this->PermissionSet->hasGlobalPermission($group,$permission);
    }
}

 

[RisteDimitrievski]

I've fixed the problem. The problem was caused by class extensions, so i removed them.