Fuzzy Search and API

I’m trying to build an airport search from an external API. I have followed all the steps but it seems the input box value has not been sent to API at all.

I use the same parameter name in the api from input and Search&complete

This is the error I got “Filter string must be longer than 3 characters in file /app/app/Http/Controllers/AirportController.php on line 52”

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Now it’s working how may I fix the repeating group:

It pulls the date from input to API, but do not show the data in the repeating group: