While making a request to the custom connector, you need to pass the request parameters and not the response parameters. Here, based on the screenshots. I think you are trying to pass the output array.
What are the parameters defined for request format in the custom connector? Based on one of your previous screenshot, the connector requires SealNumber, two other parameters. The values for these parameters needs to be passed separated by comma.
Once you are done making all the changes to the connector, save it and remove the connector from your canvas app and register it again. This way it will point to latest version of the connector. Now, the PowerApps editor will provide the order of the parameters in the intellisense, follow this order and pass the parametrs one by one like:
ConnectorName.ActionName(TextInput1.Text,TextInput2.Text,TextInput3.Text)
This above expression is for a connector with three parameters
Hope this Helps!
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