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 ('e77a5f2b1029bc4dfb2367602a0d17c6', -1, 1632331331, 1632331331, '23accb57', 0, 0, 0)

Line : 189
File : sessions.php