Can't leave feedback

It just says “There was an error in your deal details!” and doesn’t tell me what I did wrong. I pasted the URL to the thread in there, and tried a few others.

You’re talking about when you use iTrader right?

Well I didn’t actually use it, but a member did me a solid then asked me to leave feedback and I thought I could just use a link from a thread on the forum. Is that not how it works?

I just left feedback, worked fine for me.

Honestly I don’t know either; I don’t use it, lol.