phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './mopo_phpbb1/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 ('38f6b7bc1f5ff89bc9500981404d735c', -1, 1411018646, 1411018646, '36a18f16', 16, 0, 0)

Line : 191
File : sessions.php