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 ('15822d79e379548a1f3d2103ccc05e5f', -1, 1419150523, 1419150523, '36f27e09', -1, 0, 0)

Line : 172
File : sessions.php