It has nothing to do with page settings and only to do with config settings. You are not listening and not answering when I ask you questions, that is what frustrates me.
If you want any more help as I said before I need to see:
some approximation of what you entered in those settings and which settings you have used and which you have not
you posted a bunch of empty settings and I asked you this in my previous post. You have provided no information about your paypal settings or how you configured them.
The only settings that matter for paypal are these:
<add key="Site1-PaymentGatewayUseTestMode" value="false"/>
<add key="Site1-PrimaryPaymentGateway" value="PayPalDirect"/>
<add key="Site1-PayPalUsePayPalStandard" value="true"/>
<add key="Site1-PayPalProductionAPIUsername" value=""/>
<add key="Site1-PayPalProductionAPIPassword" value=""/>
<add key="Site1-PayPalProductionAPISignature" value=""/>
<add key="Site1-PayPalStandardProductionEmail" value=""/>
<add key="Site1-PayPalStandardProductionPDTId" value=""/>
the first 3 I have filled out as they need to be, if you enter the correct settings in the rest of them it will work but I have no way of knowing whether you are entering the information correctly unless you show me some approximation of what you entered there, not exactly what you entered there as that would be information you should not share, but at least if I saw the format and length of the settings you entered I might be able to spot something wrong.