phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO ataricomputers_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('7d7c45e32eb594b99f81e4b0f18ee467', -1, 1713436180, 1713436180, '12779f96', -50, 0, '0', '0')

Line : 175
File : sessions.php