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 ('f5072c1b90b464c7b7d2fe91801d69e3', -1, 1455428957, 1455428957, '36910dd7', -1, 0, 0)

Line : 187
File : sessions.php