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 ('2aa10f192c3f04296c39a2cb4b8b428f', -1, 1628122723, 1628122723, '03ec32c9', 37, 0, 0)

Line : 189
File : sessions.php