phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('0868f1e5b0ed4a57692a92a8bc97a216', -1, 1714611288, 1714611288, '030f064d', 15, 0)

Line : 158
File : sessions.php