Uncaught exception thrown in session handler.

PDOException: SQLSTATE[HY000]: General error: 144 Table './comunicacaoteste/sessions' is marked as crashed and last (automatic?) repair failed: SELECT 1 AS expression FROM {sessions} sessions WHERE ( (sid = :db_condition_placeholder_0) AND (ssid = :db_condition_placeholder_1) ); Array ( [:db_condition_placeholder_0] => j48QLdavBeEdroJy_2pYqz7gTxl4O_C_558dWuJdhYI [:db_condition_placeholder_1] => j48QLdavBeEdroJy_2pYqz7gTxl4O_C_558dWuJdhYI ) in _drupal_session_write() (line 209 of /var/www/comunicacao/includes/session.inc).