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 ('bb7b4b5de4d8640cf4609dc8b2f37829', -1, 1730415626, 1730415626, '12777958', -9, 0, 0)

Line : 195
File : sessions.php