Hi,
sorry for the trouble. Most likely there is a problem downloading the required modules, although it is currently impossible to tell exactly what went wrong.
Please try using the offline MSI files to install the application and all modules offline:
http://download.pdfforge.org/go/pdfarchitect5/business/pdfarchitect5-gpo.zip
Extract the .zip file to a folder on the computers and run all the MSI subsequently, beginning with the “startup” MSI.
Hopefully this will solve the issue, if not please let us know or contact our phone support:
http://web.pdfarchitect.org/support.aspx
Best regards
Robin