phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table 'forum_sessions' is marked as crashed and should be repaired

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('fd1f8d7b2a64fbef51fa98b5d4ad1f9d', -1, 1430900853, 1430900853, '3657b4d6', -4, 0, 0)

Line : 187
File : sessions.php