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 ('7e446fef77d0cd7b7478108aa3b508d5', -1, 1780139556, 1780139556, 'd849d86d', 17, 0, 0)

Line : 187
File : sessions.php