phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './myBB2db/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('676235bbb9ffeffa1a1e8c18cb09d643', -1, 1413851365, 1413851365, '52923c4f', 1, 0, 0)

Line : 193
File : sessions.php