message: value is not mandatory
diff: @@ -206,7 +206,7 @@ export const ReceiveBitcoinScreen = observer(({ navigation }) => {
  let invoice
  try {
  - const query = `mutation addInvoice($value: Int!, $memo: String) {
  + const query = `mutation addInvoice($value: Int, $memo: String) {
  invoice {
  addInvoice(value: $value, memo: $memo)
  }
  