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 ('621823557c0523b92dc5a2746e1fab82', -1, 1714339127, 1714339127, '038e6092', 20, 0)

Line : 158
File : sessions.php