TAXI.com

Okay, I think I've figured out the link thing. Anyway.....I've received some song returns with the comment that they lack polished production. This seems like one of those vague terms you either know or you don't, and I apparently don't. Anyone able to help me interpret this? I'd be very grateful. Here's a link to one of the songs....
https://www.taxi.com/members/F_u9UnfjSg ... he-said-so

It's weird, Rob, I tried looking up some of your previous forwards, and the links to those also don't work.

https://blog.taxi.com/forward/041321/

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Michael