Upon creation of a new site, I get a 404 page and the url

Upon creation of a new site, I get a 404 page and the url looking something like mysite/pro-site/?bid=3. I don't have Pro Site plugin downloaded and I have done a fresh install of WP and a brand new database. Why is it still referring to Pro Sites and how do I fix it? I don't want to run the Pro Sites plugin. The only WPMUDEV plugins running are:
Remove Email Verification
Set Password on Multisite Blog Creation