How do I fix duplicate title issues?

[MMAffiliate]

I have a sub domain that isn't even on our own site but it's resulting in a lot of errors in Moz for duplicate content, as shown here: http://cl.ly/1R081v0K0e2N. Would this affect our ranking or is it simply just errors within Moz?

What measures could I take to make sure that Moz or Google doesn't associate our site with these errors? Would I have to noindex in the htaccess file for the sub domain?

[GlobeRunner]

Typically, the best way to deal with this is to make sure that your subdomain cannot be crawled by the search engines. If Moz crawls it then you will still see the errors. But, if you block Google from crawling it (use the robots.txt file), then you should be fine.

[MMAffiliate]

Awesome, thank you!