phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './kidnem998/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 ('f9093c640e4d6d0f75743ccc8f72aa64', -1, 1466837583, 1466837583, '36c60759', -1, 0, 0)

Line : 187
File : sessions.php