Title Field Showing Archive

I have used custom links for the menu structure as:

New Jersey (custom link) > Old Tappan (custom link) > Furniture (listing category)

and I assigned the business "Modern Furniture" to the Furniture listing category

It all looks great except the title header in the web browser:

http://bizfinderusa.com/listcat/furniture/

The title field has this in it:

<title>Furniture Archives | BizFinderUSABizFinderUSA </title>

How did it get this assigned to it? It just looks wrong and this is how it now appears on page 1 of search on it's first day - which I'm very happy about i.e. making it to page 1 within 24 hours, but still, using "Archive" in the title field and repeating the website title name 2x?

Please advise how I can either edit this or tell me how to do the menu differently so it show proper title. Thanks!

 

I would appreciate an answer since I am already live, thank you!

 

We have visited your website the problem is occurring due to any one of the plugin you are using, Deactivate all plugins one by one and checkout which plugin creating this problem.

 

This was an error being caused by Yoast WP SEO. The code in the header.php had to be changed from what is currently there to just this:

<title><?php wp_title(''); ?></title>

Worked perfectly and all of my headers look exactly as I want them to look.