btcpayserver: BitPay Node.JS Client error interacting with BTCPayServer "no-bitid"

I’ve successfully paired the Bitpay Node.JS client with my local instance of BTCPayServer, but when i try to invoke the api i’m getting this weird “no-bitid” error.

root@ubuntu:/home/ubuntu/node_modules/bitpay/lib# bitpay pair
Do you have a pairing code?
no

Okay, we can get a pairing code, please choose a facade:
  1) Point of Sale
  2) Merchant
  : 1

 Your token information:

 Client ID:     Tf71..................................ZYR3
 Pairing Code:  zEXgMr5
 Label:         node-bitpay-client-ubuntu
 Facade:        pos


 Your pairing code will be available until: Wed Apr 11 2018 20:17:57 GMT-0300 (-03)


 Pair this client with another organization by giving an administrator this pairing code:
 zEXgMr5

 Pair this client with your organization:
 https://0.0.0.0:23000/api-access-request?pairingCode=zEXgMr5

Then i access the link on the browser and get the message “Pairing is successful”, the token is now activated.

But when i try to invoke any methods i only get errors

root@ubuntu:/home/ubuntu/node_modules/bitpay/lib# bitpay whoami
Enter Key Password:
Error: { error: 'no-bitid' }
root@ubuntu:/home/ubuntu/node_modules/bitpay/lib# bitpay request -T pos -R invoices
Enter Key Password:
Error: { error: 'no-bitid' }
root@ubuntu:/home/ubuntu/node_modules/bitpay/lib# bitpay request -T pos -X post -R invoices -P '{"price": 15, "currency": "USD"}'
Enter Key Password:
Error: { error: 'no-bitid' }

I’ve commented the lines that check the type of the model of “controller.User.Identity” on “Extensions.cs” (just to help debugging)

public static BitIdentity GetBitIdentity(this Controller controller, bool throws = true) {
//    if (!(controller.User.Identity is BitIdentity))
//        return throws ? throw new UnauthorizedAccessException("no-bitid") : (BitIdentity)null;
    return (BitIdentity)controller.User.Identity;
}

Now this error is thrown at server console

crit: PayServer:      Unhandled exception in BTCPayMiddleware
System.InvalidCastException: Unable to cast object of type 'System.Security.Claims.ClaimsIdentity' to type 'BTCPayServer.Authentication.BitIdentity'.
   at BTCPayServer.Extensions.GetBitIdentity(Controller controller, Boolean throws) in /home/ubuntu/btcpay/btcpayserver/BTCPayServer/Extensions.cs:line 117