Can I use a VPS to set up a trade copier from my challenge account to my personal account and manage the trades on my local system?

Yes, you are able to use a VPS to set up a trade copier. As long as all accounts are in your name, you will not breach any OriginFx rules.

However, when using a VPS we suggest traders to use a dedicated IP address so you are not sharing an IP with other traders.
If you are using a VPN we suggest selecting a specific IP address within a country for consistency.
These suggestions are to prevent the risk of being flagged for account management or copy trading breaches.
If an account is flagged and you are using a VPS/VPN you will be required to provide detailed evidence.