diff --git a/src/Block.tsx b/src/Block.tsx
index 87da28d..3064c99 100644
--- a/src/Block.tsx
+++ b/src/Block.tsx
@@ -67,8 +67,12 @@ const Block: React.FC = () => {
 
       const _block = provider.formatter.block(_rawBlock);
       const extBlock: ExtendedBlock = {
-        blockReward: provider.formatter.bigNumber(_rawIssuance.blockReward),
-        unclesReward: provider.formatter.bigNumber(_rawIssuance.uncleReward),
+        blockReward: provider.formatter.bigNumber(
+          _rawIssuance.blockReward ?? 0
+        ),
+        unclesReward: provider.formatter.bigNumber(
+          _rawIssuance.uncleReward ?? 0
+        ),
         feeReward: fees,
         size: provider.formatter.number(_rawBlock.size),
         sha3Uncles: _rawBlock.sha3Uncles,
diff --git a/src/Title.tsx b/src/Title.tsx
index c64fdbd..46e1e5c 100644
--- a/src/Title.tsx
+++ b/src/Title.tsx
@@ -1,9 +1,11 @@
-import React, { useState, useRef } from "react";
+import React, { useState, useRef, useContext } from "react";
 import { Link, useHistory } from "react-router-dom";
 import useKeyboardShortcut from "use-keyboard-shortcut";
 import PriceBox from "./PriceBox";
+import { RuntimeContext } from "./useRuntime";
 
 const Title: React.FC = () => {
+  const { provider } = useContext(RuntimeContext);
   const [search, setSearch] = useState<string>();
   const [canSubmit, setCanSubmit] = useState<boolean>(false);
   const history = useHistory();
@@ -43,7 +45,7 @@ const Title: React.FC = () => {
         </div>
       </Link>
       <div className="flex items-baseline space-x-3">
-        <PriceBox />
+        {provider?.network.chainId === 1 && <PriceBox />}
         <form
           className="flex"
           onSubmit={handleSubmit}
diff --git a/src/useProvider.ts b/src/useProvider.ts
index 9ce1445..c6a3a5c 100644
--- a/src/useProvider.ts
+++ b/src/useProvider.ts
@@ -33,10 +33,7 @@ export const useProvider = (
     setConnStatus(ConnectionStatus.CONNECTING);
 
     const tryToConnect = async () => {
-      const provider = new ethers.providers.JsonRpcProvider(
-        erigonURL,
-        "mainnet"
-      );
+      const provider = new ethers.providers.JsonRpcProvider(erigonURL);
 
       // Check if it is at least a regular ETH node
       let blockNumber: number = 0;