fix(null error): fix toLocaleString() on null

app/components/Contacts/Network.js

@@ -88,6 +88,12 @@ class Network extends Component {
       return 'online'
     }
 
+    console.log('balance: ', balance)
+    console.log('currentTicker: ', currentTicker)
+    
+    if (!currentTicker) { return <span /> }
+    if (balance.balanceLoading) { return <span /> }
+
     return (
       <div className={styles.network}>
         <header className={styles.header}>

app/components/Wallet/Wallet.js

@@ -31,6 +31,12 @@ class Wallet extends Component {
       openRequestForm
     } = this.props
 
+    console.log('balance: ', balance)
+    console.log('currentTicker: ', currentTicker)
+
+    if (!currentTicker) { return <span /> }
+    if (balance.balanceLoading) { return <span /> }
+
     const { modalOpen, qrCodeType } = this.state
     const usdAmount = parseFloat(btc.satoshisToUsd(balance.walletBalance, currentTicker.price_usd)).toLocaleString()