Ah, the old MS Solution
Run as Administrator
To quote a certain TV presenter, 'What a load of old cock'
And what is wrong with SOAP? A WSDL defines the contract between the two sides. Then you can validate the messages against the WSDL and sent it back if it does not conform. As for JSON, it has a lot of uses but its free format nature is a source of approx 50% of the errors we have to deal with on a dails basis. The older SOAP WebServices work day in , day out with very few errors.
JSON, OHhhh shiny must use it.
IF that colour scheme if light white on Blue is standard then IMHO it is useless. Many people of a certain age (me included) can't read it.