cURL error 7: Failed to connect to 127.0.0.1 port 8888: Connection refused (nginx)

Question

I got 3 curl calls in my laravel code

$fullNode = new \\IEXBase\\TronAPI\\Provider\\HttpProvider(\'http://127.0.0.1:8090\');
$solidityNode = new \\IEXBase\\TronAP