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 ('0ec2017c98985a5587306b8244b0e191', -1, 1748534888, 1748534888, '0390b952', -10, 0, 0)

Line : 189
File : sessions.php