Hello Eduardo,
I had configure the admin page to use the binaries from mingw version.
I created a new role base web application using outsystem and added the GeneratePDF action to the module.
Here's what I done:
1) Create a button in a web screen. Upon click the button, it should generate the pdf based on data in another web screen (I had url point to actual url of the web screen)

2) When I test the function, I am getting following error:

Detail error log:
Problem generating PDF from HTML, URLs: https://<url>/TestPdfFunction.aspx
at ssHtmlToPdfConverter.RssExtensionHtmlConvertToPdf.MssInternal_GeneratePDF(HeContext heContext, String inParamExecutablePath, String inParamURL, String inParamProxy, String inParamOtherArgs, Boolean inParamLowPriority, Int32 inParamTimeout, Byte[]& outParamPDFBinary, String& outParamMessageErrorOutput, String& outParamMessageOutput)
at ssHtmlToPdfConverter.Actions.ActionGeneratePDF(HeContext heContext, String inParamURL, String inParamProxy, String inParamOtherArgs, Int32 inParamTimeout, Byte[]& outParamPDFBinary, String& outParamMessageOutput)
at ssKNOT.RsseSpaceHtmlToPdfConverter.MssGeneratePDF(HeContext heContext, String inParamURL, String inParamProxy, String inParamOtherArgs, Int32 inParamTimeout, Byte[]& outParamPDFBinary, String& outParamMessageOutput)
at ssKNOT.Flows.FlowMainFlow.ScrnTravelRequests.CommandTestpdfgenerator(HeContext heContext)
However, it work fine when I change the url to google.com. Do you have any idea why I am getting this error?