Total Cache doesn't work…

Hello all !

I have a problem with Total cache. I can’t install Total cache, I have this errors :

Execute next commands in a shell:
cp /home/www/57cd0b18e36d275ba4ace2713c2742a9/web/wp-content/plugins/w3-total-cache/wp-content/advanced-cache.php /home/www/57cd0b18e36d275ba4ace2713c2742a9/web/wp-content/advanced-cache.php
cp /home/www/57cd0b18e36d275ba4ace2713c2742a9/web/wp-content/plugins/w3-total-cache/wp-content/object-cache.php /home/www/57cd0b18e36d275ba4ace2713c2742a9/web/wp-content/object-cache.php
cp /home/www/57cd0b18e36d275ba4ace2713c2742a9/web/wp-content/plugins/w3-total-cache/wp-content/db.php /home/www/57cd0b18e36d275ba4ace2713c2742a9/web/wp-content/db.php

Files have been copied in wp-content folder… I don’t understand why Total Cache does’nt works !

Do you have an idea ?

Thanks !