The myibay sniper software is not letting me win autions. In the details window my sniper status says "ebay link is expired please relink" What do I do to fix it?

Please relink your eBay account as suggested in the status:
https://www.myibidder.com/forums/viewtopic/8053/important-changes-to-your-account/

The sniper sent you several email notifications before expiration, but it seems like you did not follow up.
Please follow up next time to avoid missing snipes.

You can always see the status of your expiration in the "Profile" section, or "eBay account" if you use a mobile app.