phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'af83ef1da869d2ed9526f2dad7e5d2d6' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('af83ef1da869d2ed9526f2dad7e5d2d6', -1, 1769311979, 1769311979, 'd849d83c', 1, 0, 0)

Line : 187
File : sessions.php