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 ('f8a801fa8a86efec80f6adab8a1b5083', -1, 1714710697, 1714710697, '12bfe458', -4, 0)

Line : 158
File : sessions.php