Paypal 3.5.5 error Invalid Argument Errorcode 10472

[tengusama]

Hello, I just update to Paypal 3.5.5 and my paypal dont work, eveytime someone try to pay with Paypal receve this error.

Please try to contact the merchant:

• PayPal response:
  
• TIMESTAMP -> 2013-06-28T14:24:00Z
  
• L_ERRORCODE0 -> 10472
  
• L_SHORTMESSAGE0 -> Transaction refused because of an invalid argument. See additional error messages for details.
  
• L_LONGMESSAGE0 -> CancelURL is invalid.
  
• L_SEVERITYCODE0 -> Error
  

Some one had this error before?, someone can help me?.

 

Thank you very much for your help.

 

Best Regards

Tengusama