sitemap problem

[xypher]

Hi to all

I`m new to this platform but  try hard to understand it. I have an issue. I have an jewellry online shop. I use prestashop 1.5.2.0 and for creating sitemap i used google sitemap module, but when i generate it and add sitemap to webmaster account i get like this : 60 erros and 2 warnings that look like this

60 erros that looks the same : " Invalid URL

  This is not a valid URL. Please correct it and resubmit.

 

Parent tag: url

Tag: loc  "

 

 

2 warining, looks same:

Sitemap contains urls which are blocked by robots.txt.

 

Can anyone help me because i`m trying for 2 days to figure out and i can`t. I need help so i don`t fall down in google.

 

Thank you in advance my presta fellows