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, session_admin) VALUES ('57cab054e327be0615bc1f39bedd916d', -1, 1713913194, 1713913194, '03856cf1', 5, 0, 0)

Line : 187
File : sessions.php