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 ('dd363a0295887ecd20bb571aaeee5106', -1, 1730439470, 1730439470, '039170bb', -1, 0, 0)

Line : 195
File : sessions.php