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 ('9673ceb9ef5df6f751741b77e9d35df2', -1, 1779129855, 1779129855, 'd849d88a', 9, 0, 0)

Line : 187
File : sessions.php