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 ('532a40597704d41212f24b172796e8d8', -1, 1714648586, 1714648586, '03912a5e', 20, 0)

Line : 158
File : sessions.php