phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table '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 ('c717a797fb7a6c8bfbe680568f9ea2c9', -1, 1430719146, 1430719146, '36f269c4', -1, 0, 0)

Line : 172
File : sessions.php