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 ('a54b7a664b9b7c12abc58d24c980233c', -1, 1418869455, 1418869455, '36d3e6ba', 15, 0, 0)

Line : 191
File : sessions.php