API connector, schema setup, can't post JSON

Wappler Version : 4.4.5
Operating System : MacOS
Server Model: NodeJS
Database Type: PostgreSQL
Hosting Type: Docker

Expected behavior

Can preview schema, by inputting JSON and clicking “Fetch Schema”

Screenshot1516×1436 140 KB

Actual behavior

Screenshot1514×800 52.1 KB

API request is not actually performed, the error message comes from Wappler

How to reproduce

Create API action to a Beeceptor endpoint, set POST method and JSON:

{{ rows.data }}

[{"name": "George"}]

(yes, it’s an array of objects)