phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpBB/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 ('0ee9673683d0928a0b537d7211e8cb51', -1, 1430136720, 1430136720, '321070c7', 29, 0, 0)

Line : 187
File : sessions.php