E-commerce System without error page

[SeoMartin1]

I´d love to know your thoughts about this particular issue:

1. Vtex is top3 e-commerce system in brazil. ( issue is huge)
2. the system do not use 4XX responde codes
3. If there is a error page, they just redirect it to a search page with 200 code.
4. in Google index we can find a lot of "empty" pages ( indexed error pagess)
5. We can´t use noindex for them

Example:
http://www.taniabulhoes.com.br/this-is-a-test
OR
http://www.taniabulhoes.com.br/thisisatest

Any suggestions?

[DonnaDuncan]

Hi SEO Martin,

I'm trying to figure out your exact question. Are you wondering whether you should noindex the "empty" pages? Are you trying to figure out how to identify all the pages that are producing errors? Or something else?