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 ('dec3cb660de1e09610153511dbeb100e', -1, 1787662663, 1787662663, 'd849d8c1', -9, 0, 0)

Line : 187
File : sessions.php