diff --git a/index.html b/index.html
index 257daf0..9f16f2d 100644
--- a/index.html
+++ b/index.html
@@ -4050,14 +4050,15 @@
             })
         }
         async function calculateBtcFees() {
-            getRef('send_transaction').disabled = true;
-            getRef('fees_section').classList.add('hidden')
-            getRef('error_section').classList.remove('hidden')
-            renderElem(getRef('error_section'), html`<div class="flex align-center gap-0-5" style="font-size:0.9rem"><sm-spinner></sm-spinner> Calculating fees...</div>`)
             const [senders, privKeys, receivers, amounts] = await getTransactionInputs().catch(e => {
                 console.error(e)
                 return [[], [], [], []]
             });
+            if (!senders.length || !privKeys.length || !receivers.length || !amounts.length) return;
+            getRef('send_transaction').disabled = true;
+            getRef('fees_section').classList.add('hidden')
+            getRef('error_section').classList.remove('hidden')
+            renderElem(getRef('error_section'), html`<div class="flex align-center gap-0-5" style="font-size:0.9rem"><sm-spinner></sm-spinner> Calculating fees...</div>`)
             btcOperator.createSignedTx(senders, privKeys, receivers, amounts).then(({ fee }) => {
                 getRef('send_fee').value = fee.toFixed(8);
                 getRef('fees_section').classList.remove('hidden')
@@ -4071,7 +4072,7 @@
                         <svg class="icon" xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000"><path d="M11 15h2v2h-2v-2zm0-8h2v6h-2V7zm.99-5C6.47 2 2 6.48 2 12s4.47 10 9.99 10C17.52 22 22 17.52 22 12S17.52 2 11.99 2zM12 20c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8z"/></svg>
                         ${e}
                         </p>
-                        `)
+                    `)
                 getRef('send_transaction').disabled = true;
                 console.error(e)
             })
@@ -4154,8 +4155,8 @@
             const privateKey = await floDapps.user.private.catch(err => console.log(err));
             const privKeys = btcOperator.convert.wif(privateKey);
             const senders = floGlobals.myBtcID;
-            const receivers = [...getRef('receiver_container').querySelectorAll('.receiver-input')].map(input => input.value.trim());
-            const amounts = [...getRef('receiver_container').querySelectorAll('.amount-input')].map(input => {
+            const receivers = [...getRef('receiver_container').querySelectorAll('.receiver-input')].filter(input => input.value.trim() !== '').map(input => input.value.trim());
+            const amounts = [...getRef('receiver_container').querySelectorAll('.amount-input')].filter(input => input.value.trim() !== '').map(input => {
                 return parseFloat(input.value.trim())
             });
             return [senders, privKeys, receivers, amounts]