Warning: require_once(./tools/sbs_db_access.php) [function.require-once]: failed to open stream: No such file or directory in C:\WWW\yoyaku_reference\models\message_model.php on line 8

Fatal error: require_once() [function.require]: Failed opening required './tools/sbs_db_access.php' (include_path='.;C:\PHP\includes;C:\www\shinryo_shien;') in C:\WWW\yoyaku_reference\models\message_model.php on line 8