New Post: NB_Store Error in checkout

Hello my name is Jesus Alfredo and im new en this page :D

I have aproblem in my NB_Store and is this:


In minicart module, to click on checkout sends me the error:

(Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /tabid/93/Default.aspx
)
The back office and I addressed to my page of checkout in PayPal.Gateway :

<root>

<paymentURL>https://www.paypal.com/cgi-bin/webscr</paymentURL>
<verifyURL>https://www.paypal.com/cgi-bin/webscr</verifyURL>
<PayPalID>testyrules@gmail.com</PayPalID>
<CartName>DonMomioGarantizado</CartName>
<ButtonImageURL>/DesktopModules/NB_Store/img/horizontal_solution_PPeCheck.gif</ButtonImageURL>
<Currency>MXN</Currency>

<ReturnURL>http://http://www.mobee.mx/mobee/tabid/93/stg/5/ordID/[ORDERID]/Default.aspx?PayPalExit=RETURN>

<ReturnCancelURL>http://www.mobee.mx/mobee/tabid/93/stg/5/ordID/[ORDERID]/Default.aspx?PayPalExit=CANCEL</ReturnCancelURL>
<ReturnNotifyURL>http://www.mobee.mx/mobee/tabid/93/stg/4/Default.aspx</ReturnNotifyURL>
<MerchantLanguage>en</MerchantLanguage>
<paypalurl>
  <cmd>_xclick</cmd>
  <first_name>[BAddress:AddressName]</first_name>
  <last_name>[BAddress:AddressName2]</last_name>
  <address1>[BAddress:Address1]</address1>
  <address2>[BAddress:Address2]</address2>
  <city>[BAddress:City]</city>
  <country>[BAddress:CountryCode]</country>
  <zip>[BAddress:PostalCode]</zip>
  <email>[Order:Email]</email>
</paypalurl>

</root>


I followed all the steps on this page:
http://nbstore.codeplex.com/wikipage?title=Step%20by%20step%20guide%20to%20a%20working%20store&referringTitle=Documentation

, but I dont know if i miss a step :/

can you help me ????

this is my page
http://www.mobee.mx/mobee/


NOTE: I´ve dnn 7

chearss :D