error occasional - faultCode: Channel.Call.Failed

Please help me

In my application occur this error randomly

faultCode: Channel.Call.Failed
faultDetail: 'NetConnection.Call.Failed: HTTP: Failed'
faultString: 'error'



http://www.rarusflats.com.br/Senap1.jpg

http://www.rarusflats.com.br/Senap2.jpg




I see this post and i Add a Blank Application.cfm, in folder cfc , But not resolved

http://www.coldfusiondeveloper.com.au/go/news/by/jeff-douglas/20080523 -flex-3-remoting-error-channelcallfailed/


http://www.rarusflats.com.br/Senap3.jpg


Exist any solution to resolve this error of “faultCode: Channel.Call.Failed” ?

And in COldfusion exist any Log to see error for this ?


I already tried that occurs when the error access the Gateway of Flex

http://www.rarusflats.com.br/flex2gateway/

But when the screen is blank, in the case in operation correct?