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 ('5ed9ad38a10d5522f15409b9b3b0b8f5', -1, 1714638465, 1714638465, '127601e8', -2, 0)

Line : 158
File : sessions.php