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 ('2d9e12ff2603ee2c6d5ec9914d921252', -1, 1770999584, 1770999584, 'd849d8d9', -2, 0, 0)

Line : 187
File : sessions.php