bonjour,
j'aimerai installé joomla sur mon hébergement free.
J'ai télécharger joomla, l'ai décompressé, puis l'ai envoyé sur mon ftp
j'appelle ensuite ma page comme suit:http://ckcac.free.fr/france/installation/index.php
mais comme vous pouvez le voir il m'affiche 5 méssages d'erreurs que voici:

Warning: session_start() [function.session-start]: open(/mnt/115/sdb/1/6/ckcac/sessions/sess_97f94fa01ce20d50a673a1c6607c5dd2, O_RDWR) failed: No such file or directory (2) in /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php on line 412

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php:412) in /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php on line 412

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php:412) in /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php on line 412

Warning: Cannot modify header information - headers already sent by (output started at /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php:412) in /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php on line 415
Warning: session_write_close() [function.session-write-close]: open(/mnt/115/sdb/1/6/ckcac/sessions/sess_97f94fa01ce20d50a673a1c6607c5dd2, O_RDWR) failed: No such file or directory (2) in /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php on line 545

Warning: session_write_close() [function.session-write-close]: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/mnt/115/sdb/1/6/ckcac/sessions) in /mnt/115/sdb/1/6/ckcac/france/libraries/joomla/session/session.php on line 545

De plus, il m'indique lors que je souhaite lancer l'installation que mozilla bloque les pop up (alors que non)
Est ce que quelqu'un peut m'aide.
merci