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 ('b6a36bb8aac80985a5e2ac0327723d31', -1, 1714392036, 1714392036, '12dc01ef', -9, 0)

Line : 158
File : sessions.php