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 ('72f8bea66f9e83a54981a8cd78c0fd61', -1, 1730415923, 1730415923, '0d3b3d93', -1280, 0, 0)

Line : 195
File : sessions.php