paFileDB Error

paFIleDB encountered an error while running a database query and is unable to continue.

For technical assistance, please visit The PHP Arena support page.
mysql error: [145: Table './unilibre_diagsaberes/pafiledb_comments' is marked as crashed and should be repaired] in EXECUTE("SELECT * FROM pafiledb_comments LEFT JOIN pafiledb_users ON pafiledb_comments.comment_userid = pafiledb_users.user_userid WHERE comment_fileid = 170 ORDER BY comment_time ASC")