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 ('f6db85ec82a30f47adfbe6f43c55a7b7', -1, 1730428622, 1730428622, '0d3a1078', -1, 0, 0)

Line : 195
File : sessions.php