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 ('f1f65618f88f2c254c5d8871b2d0d9cb', -1, 1769404871, 1769404871, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php