Problem with duplicated meta tags

Hi, I'm in serious trouble, google indexed the "new products" and "all products" listing, the problem with this is that all the pages (1,2,3,4,...) Have the same meta tag description.

How can I change this ? Any ideias for me to solve this problem ? would a "no follow, no index" or a disallow in the robots txt solve this problem ?

Thank you

for instance, how do i remove meta tag description and keyword just for the all product lisitng? thanks

There really isn't enough information in your post to help you figure out what's wrong, if anything.

What version of Zen Cart?
Was it a new install or has it been upgraded? from which version(s)?
What addons/contributions are installed?
What's the URL where it can be viewed directly?

it's 1.38

https://www.maissaude.eu

my main problem right now is this situation:

I dont have control hover the meta tag keyword, and meta tag descriptio,
when you're viewing the all_product, new_products and manufactures product listings.

zencart uses the store default keywords, and for the discription it uses the names of my top categories.

what i wanted to happen, was that it used the product names in that listing for the keywords meta tag, and for the description meta tag in those pages.

how can this be done ? thanks