I have a Wordpress site that I have set up with Google Fetch and I have been getting a bunch of crawl errors and it has started significantly hurting my Google ranking and site traffic even though it clearly says it shouldn't. The thing that doesn't make sense to me is that the 404 pages are not actually pages that exist. They are Tags and categories on my blog mixed with a site address from one of my other websites that is not actually associated with this blog at all. They are different domains/databases and everything so they shouldn't be connected.
The site was actually giving me the same problem a few weeks ago and I actually switched to a new theme because I noticed the one I had was out of date and thought maybe it was throwing a random error. But now, I have no idea why this would even happen or where Google would come up with this URL.
Here are a few examples:
Basically any time I add a new tag it seems that Google is crawling it and then adding my other site's web address to the end and claiming it is a 404 page. Has anyone ever experienced anything like this? Is there some way I can help it?
Any insight would be much appreciated. I am at a loss as to how to fix this and it is becoming extremely frustrating since it is affecting my ranking.