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 ('7272ed1035a534d2b689fca61fb5b36b', -1, 1726880714, 1726880714, '038582c7', -11, 0, 0)

Line : 189
File : sessions.php