A customer received an empty json object from a web service.
It is easy to reproduce the error:
json$="{'address':{}}"; rem RFC compliant
json$=sub(json$,"'",quo)
dim load arr$[all]=json$
Error #17: Invalid file type or contents
You must be running PxPus 2016 or earlier as this was addressed a few years ago.
Please update your system and try again.