Fireblocks-json-rpc any request returns error "Invalid JSON RPC response"

Hi,
I am trying to use fireblocks-json-rpc
I was able to run it locally with the command:

image

server starts and I am trying to send the request to it via Postman:

curl --location --request POST ‘http://127.0.0.1:8545/442b46fa-7341-46bf-b47c-75612923df7e
–header ‘Content-Type: application/json’
–data-raw ‘{
“method”: “eth_getBalance”,
“params”: [
“0x19400AC1f9df9102ADC1C0dF4d20d8c4B666B512”,
“latest”
],
“id”: 1,
“jsonrpc”: “2.0”
}’

And I got the response (for any request):
{
“id”: 1,
“jsonrpc”: “2.0”,
“error”: {
“message”: “Invalid JSON RPC response: {"size":0,"timeout":0}”,
“code”: -32603
}
}

Could someone help me to figure it out? Thank you!