I don't know why it's showing:"Argument must be valid a json"

[pavi2410 (Pavitra Golchha)]

Problem with Json Parsing from URL

I want to making dynamic list using web API. i tried but failed everytime. Its work when i using json in text , but i got error message when i tried to parse data from web url. Web API Link : API Testing AIS program_test.ais (13.9 KB) Anyone help me to findout my problem?