Blog URL link duplicates site's URL
 

What am I doing wrong?

Here is an example

Looking at the code, it reads as follows:

Code:
[B]Get 30% off a [ URL="http:/www.gottapixel.net/store/product.php?productid=18691&cat=39&page=1"]1 year Pixel Club Membership[/URL ] today!
Code:
http:/www.gottapixel.net/www.gottapixel.net/store/product.php?productid=18691&cat=39&page=1
All of our links are broken because of this. How do I fix this?