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 ('0161f1fdb3583b9586830151b5ed4fe8', -1, 1714029198, 1714029198, '12bfaea8', 3, 0, 0)

Line : 187
File : sessions.php