diff --git a/content/transactions.json b/content/transactions.json
index 8d4f369..930ea34 100644
--- a/content/transactions.json
+++ b/content/transactions.json
@@ -30,6 +30,10 @@
       "$value": "100",
       "$type": "amount.xrp"
     },
+    "DeliverMin": {
+      "$value": "",
+      "$type": "amount.xrp"
+    },
     "CheckID": "838766BA2B995C00744175F69A1B11E32C3DBC40E64801A4056FCBD657F57334",
     "Fee": "12"
   },
diff --git a/utils/estimateFee.ts b/utils/estimateFee.ts
index 0f3bde8..e8e90f1 100644
--- a/utils/estimateFee.ts
+++ b/utils/estimateFee.ts
@@ -25,7 +25,7 @@ const estimateFee = async (
 
     const res = await xrplSend({ command: 'fee', tx_blob: signedTransaction })
     if (res.error) {
-      throw new Error(`[${res.error}] ${res.error_exception}`);
+      throw new Error(`[${res.error}] ${res.error_exception}.`);
     }
     if (res && res.drops) {
       return res.drops