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 ('780e4b9fc4065cc1b9c5b86e9d4f6aac', -1, 1713532601, 1713532601, '0387c8d3', -10, 0, 0)

Line : 187
File : sessions.php