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 ('af7b3e1c64d90de5c9e0a2f9cab2374a', -1, 1713517804, 1713517804, '12756b5a', -11, 0, 0)

Line : 187
File : sessions.php