Missing images when URL Rewrite its activated

[fiabit.es]

Hello.

 

Mi shop its:

 

www.fiabit.es

 

I have a problem with URL Rewrite, when its activated some images are missing because its look in an inexisteng directory.

 

http://fiabit.es/tablets-8/8-chuvi-v88-6952268983868.html

 

The background image its on but it search in http://fiabit.es/tablets-8/themes/electronics/img/bg/0.png

 

 

http://fiabit.es/themes/electronics/img/bg/0.png

 

 

Thanks.