مشكلة في مركز تحميل ترايدنت 3

السلام عليكم و رحمة الله و بركاته
عندما أقوم بتنصيب مركز ترايدنت تظهر لي مشكلة هذا نصها




رمز Code:
Warning: include_once(/home/CpanelUser/public_html/upload/includes/classes/Db.php) [function.include-once]: failed to open stream: No such file or directory in /hermes/web04/b1903/moo.3oloomcom/upload/install/install.php on line 16

Warning: include_once() [function.include]: Failed opening '/home/CpanelUser/public_html/upload/includes/classes/Db.php' for inclusion (include_path='.:/usr/local/lib/php-5.2.17/lib/php') in /hermes/web04/b1903/moo.3oloomcom/upload/install/install.php on line 16

Fatal error: Class 'DB' not found in /hermes/web04/b1903/moo.3oloomcom/upload/install/install.php on line 18
ما الحل

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