Catalog not found Error

so the problem is that when we run our commerce site we get a "the
specified 
catalog does not exist" error when we try to add a product to the cart.
The 
code errors at this point in the CatalogItemUri.cs file.

protected virtual ProductCatalog InternalGetCatalog()
        {
            if (!string.IsNullOrEmpty(this.CatalogName))
            {
                
                return CatalogHelper.GetCatalog(this.CatalogName);
            }
            return null;
        }

What seems to be happening is taht at some point our site is changing 
"catalogname" from our catalog which is "Test Catalog" to "Products". 

We tried changing "this.catalogname" to "Test Catalog" and our item still 
doesn't add to the cart instead it just redirects to the root catalog
page.

Can anyone help with this?

Thanks,

Blake