Bid button not working

Hello, I like the simplicity of your plug-in, but the bid button doesn’t seem to work. It was working before you pushed the update today, but now it isn’t. It’s worked one time, but can’t submit any successive bids from any devices.

My site is rr.jittechsolutions.com. I see others have also submitted this same issue with no response. I’m hoping you will respond as I have a very short turnaround before my group would like to have a live site. We only have 1 item that we would like to auction.

https://www.ads-software.com/plugins/ultimate-auction/