Question Cannot display forum | _has_rights() error

Fatal error: Non-static method CKunenaTools::_has_rights() cannot be called statically in /components/com_kunena/class.kunena.php on line 836

function getAllowedForums($uid = 0, $gid = 0, &$acl) { global $database; function _has_rights(&$acl, $gid, $access, $recurse) { if ($gid == $access) return 1; if ($recurse) { $childs = $acl->get_group_children($access, 'ARO', 'RECURSE'); return (is_array($childs) and in_array($gid, $childs)); } return 0; } [... more code in here ...] return $catlist; }

function _has_rights(&$acl, $gid, $access, $recurse) { if ($gid == $access) return 1; if ($recurse) { $childs = $acl->get_group_children($access, 'ARO', 'RECURSE'); return (is_array($childs) and in_array($gid, $childs)); } return 0; } function getAllowedForums($uid = 0, $gid = 0, &$acl) { global $database; $catlist = ''; $query = "SELECT c.id,c.pub_access,c.pub_recurse,c.admin_access,c.admin_recurse,c.moderated" . ",(m.userid IS NOT NULL) AS ismod FROM #__fb_categories c" . " LEFT JOIN #__fb_moderation m ON c.id=m.catid AND m.userid=" . (int)$uid . " WHERE published=1"; $database->setQuery($query); $rows = $database->loadObjectList(); check_dberror("Unable to load category list."); if ($rows) { foreach($rows as $row) { if (($row->moderated and $row->ismod) or ($row->pub_access == 0) or ($row->pub_access == -1 and $uid > 0) or ($row->pub_access > 0 and CKunenaTools::_has_rights($acl, $gid, $row->pub_access, $row->pub_recurse)) or ($row->admin_access > 0 and CKunenaTools::_has_rights($acl, $gid, $row->admin_access, $row->admin_recurse)) ) $catlist .= (($catlist == '')?'':',').$row->id; } } return $catlist; }