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 ('9d89feed0f8ac56e87fc81ffbce32f41', -1, 1414176436, 1414176436, '36e2fc8e', 20, 0, 0)

Line : 191
File : sessions.php