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 ('9f70c9522f330fc7746ad87f4fb3a6c1', -1, 1408545260, 1408545260, '36c4c776', -1, 0, 0)

Line : 187
File : sessions.php