Getting FraudPreprocessResult Declined message on Paypal PayfloPro response - paypal

Question

I'm very new to payment integration. Recently I created a test account and am trying to configure Paypal integration. When I call the API, passing the xmlformat request via coldfusion <cfhttp>, I am getting the following response message:
Paypal Response:
<XMLPayResponse xmlns="http://www.paypal.com/XMLPay">
<ResponseData>
<Vendor>UserName</Vendor>
<Partner>paypal</Partner>
<TransactionResults>
<TransactionResult>
<Result>12</Result>
<FraudPreprocessResult> <Message>Review: More than one rule was triggered for Review</Message></FraudPreprocessResult>
<Message>Declined</Message>
</TransactionResult>
</TransactionResults>
</ResponseData>
</XMLPayResponse>
My xml format is
<cfxml variable="XMLDoc">
<?xml version="1.0"?>
<XMLPayRequest version="2.0">
<RequestData>
<cfif len("UserName")><Vendor>#XMLFormat("UserName")#</Vendor></cfif>
<Partner>#XMLFormat("PayPal")#</Partner>
<Transactions>
<Transaction> <!--- Id="#TxId#" --->
<Sale>
<PayData>
<Invoice>
<CustIP>#XMLFormat("127.0.0.1")#</CustIP>
<MerchantDescription>#XMLFormat("Test description")#</MerchantDescription>
<!---<MerchantServiceNum>#XMLFormat(Attributes.Extra.ServiceNumber)#</MerchantServiceNum>--->
<Date>#DateFormat(Now(),"YYYYMMDD")#</Date>
<BillFrom/>
<BillTo>
<Name>#XmlFormat("Billing to Address")#</Name>
</BillTo>
<ShipFrom/>
<ShipTo/>
<ShippingAmt Currency="USD">#DecimalFormat(2.50)#</ShippingAmt>
<TaxAmt Currency="USD">#DecimalFormat(1.12)#</TaxAmt>
<ItemAmt Currency="USD">#DecimalFormat(10.20)#</ItemAmt>
<TotalAmt Currency="USD">#DecimalFormat(13.82)#</TotalAmt>
<CustomerHostName>#XmlFormat(CGI.SERVER_NAME)#</CustomerHostName>
<CustomerBrowser>#XmlFormat(CGI.HTTP_USER_AGENT)#</CustomerBrowser>
</Invoice>
<Tender>
<Card>
<CardNum>#XmlFormat(4242424242424242)#</CardNum>
<ExpDate>#DateFormat(CreateDate(2020, 12, 1), "YYYYMM")#</ExpDate>
<CVNum>#XmlFormat(123)#</CVNum>
<NameOnCard>#XmlFormat("VISA")#</NameOnCard>
</Card>
</Tender>
</PayData>
</Sale>
</Transaction>
</Transactions>
</RequestData>
<RequestAuth>
<UserPass>
<User>#XMLFormat("UserName")#</User>
<Password>#XMLFormat("Password")#</Password>
</UserPass>
</RequestAuth>
</XMLPayRequest>
</cfxml>
ColdFusion cfhttp request:
<cfhttp url="https://pilot-payflowpro.paypal.com" method="post" timeout="60" throwonerror="yes">
<cfhttpparam type="header" name="Content-Type" value="text/xml">
<cfhttpparam type="header" name="X-VPS-CLIENT-TIMEOUT" value="60">
<cfhttpparam type="header" name="X-VPS-VIT-OS-NAME" value="#Server.OS.Name#">
<cfhttpparam type="body" value="#ToString(xml)#">
</cfhttp>
What did I do wrong here? Can anyone offer suggestions about the configuration, how to resolve this error or some ideas on how to integrate Paypal payment?