Problem with json data

Hi, I’m creating a Dataset with 2 clomns (ospiti, azienda) linked to Json data, and i’m newbie with Xibo!
When I test link appear:
{
“entries”: [
{
“Titolo”: “Visita di test”,
“ospiti”: “INGROSSO MASSIMILIANO
TROMBINI DAVIDE”,
“azienda”: “SAN”,
“sala”: “”,
“sigla”: “it”,
“inizio”: “31/05/2019 11.00”,
“fine”: “31/07/2019 15.00”
}
],
“number”: 1,
“processed”: [
[
{
“ospiti”: “INGROSSO MASSIMILIANOTROMBINI DAVIDE”,
“azienda”: “SAN”
}
]
],
“messages”: [
“Processing 1 results into 2 potential columns”,
"Processing Result with Data Root ",
“DataRoot is an object”,
“Processing as a Single Row”,
“Consolidating entries”,
“There are 1 entries in total”
]
}

but in Dataset-view data nothing appear
why this?