phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forum_members/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) VALUES ('c6abd90e45f72ecbd18f76ef91080d77', -1, 1394180737, 1394180737, '36d31a5b', -1, 0)

Line : 158
File : sessions.php