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 ('b86ef21c4f739fd7bd5f833a97e2f084', -1, 1793845604, 1793845604, 'd849d872', -9, 0, 0)

Line : 187
File : sessions.php