phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './db1070818@002dforums/phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('aa052d61094779ddb46a2cc0285b9e98', -1, 1406893902, 1406893902, '3653e90b', -1, 0, 0)

Line : 187
File : sessions.php