phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c4f0515a56e2addfb653167b75d999e' 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, priv_session_id) VALUES ('6c4f0515a56e2addfb653167b75d999e', -1, 1714243504, 1714243504, 'ac46824c', -6, 0, 0, '001c00d563b4c25231fee75ecc44c521')

Line : 187
File : sessions.php