URGENT - Réparation et installation module opc .

Bonjour, suite à l'installation du module one page checkout sur ma boutique prestashop [URL visible pour les membres Pro] ma boutique été innaccecible. Une personne de la cimmunauté et forum presta à arranger tout ca. Cependant j'ai voulu desinstaller le module qui n'été installer. tout marché bien et maintenan voici ce que j'ai :

Warning: include(/homez.342/myfashiom/www/config/smarty.config.inc.php) [function.include]: failed to open stream: No such file or directory in /homez.342/myfashiom/www/config/config.inc.php on line 154

Warning: include() [function.include]: Failed opening '/homez.342/myfashiom/www/config/smarty.config.inc.php' for inclusion (include_path='.:/usr/local/lib/php') in /homez.342/myfashiom/www/config/config.inc.php on line 154

Warning: Cannot modify header information - headers already sent by (output started at /homez.342/myfashiom/www/config/config.inc.php:154) in /homez.342/myfashiom/www/administrator/header.inc.php on line 15

Warning: Cannot modify header information - headers already sent by (output started at /homez.342/myfashiom/www/config/config.inc.php:154) in /homez.342/myfashiom/www/administrator/header.inc.php on line 17

Warning: Cannot modify header information - headers already sent by (output started at /homez.342/myfashiom/www/config/config.inc.php:154) in /homez.342/myfashiom/www/administrator/header.inc.php on line 18

Warning: Cannot modify header information - headers already sent by (output started at /homez.342/myfashiom/www/config/config.inc.php:154) in /homez.342/myfashiom/www/administrator/header.inc.php on line 19

Warning: require_once(/homez.342/myfashiom/www/config/../classes/Cookie.php) [function.require-once]: failed to open stream: No such file or directory in /homez.342/myfashiom/www/config/config.inc.php on line 20

Fatal error: require_once() [function.require]: Failed opening required '/homez.342/myfashiom/www/config/../classes/Cookie.php' (include_path='.:/usr/local/lib/php') in /homez.342/myfashiom/www/config/config.inc.php on line 20

Ma boutique etant bloquée ce projet est tres urgent. Il faudrait corriger les erreurs. et reinstaller ce module si possible proprement. Merci pour votre aide et votre travail.