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 ('3d4579d36f9f68c310110434e32d07d0', -1, 1475248211, 1475248211, '36eb2ea4', -1, 0, 0)

Line : 187
File : sessions.php