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 ('25adb3c7ae671ae7712a57b491e5a066', -1, 1730446561, 1730446561, '12747600', -1, 0, 0)

Line : 195
File : sessions.php