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 ('be28947917071a8b564b484399f3e30d', -1, 1730423151, 1730423151, '030c98c2', -1280, 0, 0)

Line : 195
File : sessions.php