phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9deeb02a7916b5a11ea836b3610d98e7', -1, 1715040837, 1715040837, '1276fe5e', -9, 0, 0)

Line : 189
File : sessions.php