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 ('6128b04405e6971927619a978e5a90a0', -1, 1714343013, 1714343013, '0391c947', 7, 0)

Line : 158
File : sessions.php