phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './myforum/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 ('8731fd27327559003e94f5f1d2b675fa', -1, 1783860510, 1783860510, 'd849d8ba', 17, 0, 0)

Line : 187
File : sessions.php