LOC variables are empty

[host1plus]

Hello,

Could someone help me. I just noticed, that may Google webmasters tools is giving me the following error:
   
Invalid URL
This is not a valid URL. Please correct it and resubmit.    
URL:
http://
Parent tag: url
Tag: loc
Problem detected on: Nov 8, 2011

Also, I have noticed that some of our sitemap lines are empty, here is the sitemap: [ External links are visible to forum administrators only ]

Would appreciate for your help if someone give me a hint how to fix these errors. Thank you.

[XML-Sitemaps Support]

Hello,

please let me know your generator URL/login to check this: https://www.xml-sitemaps.com/contact.html

[host1plus]

Hi Oleg,

Just sent you an email with all the information you requested.