Java Script Errors from Google Adsense and Tracking?!

Hello, I am the webmaster of http://www.yazio.de - I am trying to get our webpage passing the w3c validator. Unfortunetly I am getting several Errors from JS - for example like Google Adsense Code and other JS tracking code - is there anything I can do or should I not worry about?
 
Thank you!
 
Take care,
Heike


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