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 ('cf073ef26c3cf5c2aabc4c72c74e7c5f', -1, 1387674191, 1387674191, '36f2c768', 0, 0)

Line : 158
File : sessions.php