[Wamp] Wampserver ne demarre plus

Bonsoir à toutes et à tous,

Je suis débutant en développement et j'ai voulu créer un aléas pour l'utilisation de SPIP avec wampserver. Et à ma grande surprise impossible de créer un aléa et de plus wampserver ne demarre plus. Je ne sais plus quoi faire. J'ai consulté le fichier Apache error.log que voici le contenu:

Citation:

Warning: Module 'pdo_mysql' already loaded in Unknown on line 0 
[Wed Jun 26 20:29:50 2013] [notice] Child 9336: Child process is running
[Wed Jun 26 20:29:50 2013] [notice] Child 9336: Acquired the start mutex.
[Wed Jun 26 20:29:50 2013] [notice] Child 9336: Starting 64 worker threads.
[Wed Jun 26 20:29:50 2013] [notice] Child 9336: Starting thread to listen on port 80.
[Wed Jun 26 20:29:50 2013] [notice] Child 9336: Starting thread to listen on port 80.
[Wed Jun 26 20:30:01 2013] [notice] Parent: Received shutdown signal -- Shutting down the server.
[Wed Jun 26 20:30:01 2013] [notice] Child 9336: Exit event signaled. Child process is ending.
[Wed Jun 26 20:30:02 2013] [notice] Child 9336: Released the start mutex
[Wed Jun 26 20:30:03 2013] [notice] Child 9336: All worker threads have exited.
[Wed Jun 26 20:30:03 2013] [notice] Child 9336: Child process is exiting
[Wed Jun 26 20:30:03 2013] [notice] Parent: Child process exited successfully.
PHP Warning: Module 'pdo_mysql' already loaded in Unknown on line 0
 
Warning: Module 'pdo_mysql' already loaded in Unknown on line 0 
[Wed Jun 26 20:30:04 2013] [notice] Apache/2.2.22 (Win64) PHP/5.3.13 configured -- resuming normal operations
[Wed Jun 26 20:30:04 2013] [notice] Server built: May 13 2012 19:41:17
[Wed Jun 26 20:30:04 2013] [notice] Parent: Created child process 8632
PHP Warning: Module 'pdo_mysql' already loaded in Unknown on line 0
 
Warning: Module 'pdo_mysql' already loaded in Unknown on line 0 
[Wed Jun 26 20:30:04 2013] [notice] Child 8632: Child process is running
[Wed Jun 26 20:30:04 2013] [notice] Child 8632: Acquired the start mutex.
[Wed Jun 26 20:30:04 2013] [notice] Child 8632: Starting 64 worker threads.
[Wed Jun 26 20:30:04 2013] [notice] Child 8632: Starting thread to listen on port 80.
[Wed Jun 26 20:30:04 2013] [notice] Child 8632: Starting thread to listen on port 80.
[Wed Jun 26 20:30:25 2013] [notice] Parent: Received shutdown signal -- Shutting down the server.
[Wed Jun 26 20:30:25 2013] [notice] Child 8632: Exit event signaled. Child process is ending.
[Wed Jun 26 20:30:26 2013] [notice] Child 8632: Released the start mutex
[Wed Jun 26 20:30:27 2013] [notice] Child 8632: All worker threads have exited.
[Wed Jun 26 20:30:27 2013] [notice] Child 8632: Child process is exiting
[Wed Jun 26 20:30:27 2013] [notice] Parent: Child process exited successfully.

Ma difficulté est que je ne sais pas interpréter ce message d'erreur pour pouvoir corriger mon problème.
Avant d'essayer de créer un aléa wampserver marchait normal.

S'il vous plaît aidez-vous à corriger cette erreur.

Je vous remercie par avance de votre aide.