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 ('8f5b162a7ba3e8894cbb5b1478c28410', -1, 1727566505, 1727566505, '12765d40', 5, 0, 0)

Line : 189
File : sessions.php