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 ('71f9cbbbc84af99fd56cb620f9be2089', -1, 1409631095, 1409631095, '36538d91', 18, 0, 0)

Line : 191
File : sessions.php