iTrader time limit? to leave review?

[1norseman]

So, I forgot about something a bought from another member earlier this year.
I just cleaned it up, installed it etc. All good, happy buyer!

Now I realize I never left a review, and wanted to do so.
But I keep getting invalid URL msg.
Copy and paste, so URL should be correct.

I tried to search, but can't find anything...
I'm wondering if there a time limit within to leave a review?
Or is something wrong with the iTrader system?
thnx!