Fix a copy paste error

common/database_instances.cpp

@@ -517,7 +517,7 @@ void Database::DeleteInstance(uint16 instance_id)
 	std::string query;
 	
 	query = StringFormat("DELETE FROM instance_list WHERE id=%u", instance_id);
-	QueryDatabase(query)
+	QueryDatabase(query);
 
 	query = StringFormat("DELETE FROM instance_list_player WHERE id=%u", instance_id);
 	QueryDatabase(query);