phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '18af5fb064bea2f76ce67e4943256a70' for key 'phpbb_sessioni.PRIMARY'

INSERT INTO phpbb_sessioni (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('18af5fb064bea2f76ce67e4943256a70', -1, 1774239260, 1774239260, 'd849d8df', -9, 0, 0)

Line : 187
File : sessions.php