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 ('31583cb84506472b35380d08efa40a72', -1, 1409648862, 1409648862, '36cd0291', 14, 0, 0)

Line : 187
File : sessions.php