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 ('7f32c73ab5e2291a3a5a9ea61a80d1ff', -1, 1713001615, 1713001615, '23ae3ea2', -10, 0, 0)

Line : 187
File : sessions.php