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 ('d956aac4770af522be392904c9bbcf4e', -1, 1714376483, 1714376483, '03913c1d', 4, 0)

Line : 158
File : sessions.php