Little change for retro-compatibility

modules/addonsmanager/addons_installer.php

@@ -62,7 +62,7 @@ function exec_ogp_module() {
 		$query_groups .= " AND (";
 		foreach($groups as $group)
 			$query_groups .= "group_id=".$group['group_id']." OR ";
-		$query_groups .= "group_id=0)";
+		$query_groups .= "group_id=0 OR group_id IS NULL)";
 	}
 	
     if ( $home_info === FALSE )

modules/addonsmanager/addons_manager.php

@@ -336,6 +336,7 @@ function exec_ogp_module() {
 	}
 	elseif ( isset($_GET['show_group']))
 	{
+		$group_id = $group_id == '0' ? $group_id." OR group_id IS NULL" : $group_id;
 		$result = $db->resultQuery("SELECT DISTINCT addon_id, name, game_name, url, path, group_id FROM OGP_DB_PREFIXaddons NATURAL JOIN OGP_DB_PREFIXconfig_homes WHERE group_id=".$group_id);
 	}
 	?>	

modules/addonsmanager/user_addons.php

@@ -41,7 +41,7 @@ function exec_ogp_module() {
 		$query_groups .= " AND (";
 		foreach($groups as $group)
 			$query_groups .= "group_id=".$group['group_id']." OR ";
-		$query_groups .= "group_id=0)";
+		$query_groups .= "group_id=0 OR group_id IS NULL)";
 	}
 	if ($home_info)
 	{

modules/gamemanager/server_monitor.php

@@ -300,7 +300,7 @@ function exec_ogp_module() {
 			$query_groups .= " AND (";
 			foreach($groups as $group)
 				$query_groups .= "group_id=".$group['group_id']." OR ";
-			$query_groups .= "group_id=0)";
+			$query_groups .= "group_id=0 OR group_id IS NULL)";
 		}
 	}