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 ('9de302652e5a05a47896f23b760f7543', -1, 1771410666, 1771410666, 'd849d871', 3, 0, 0)

Line : 187
File : sessions.php