diff --git a/lerna.json b/lerna.json
index 4c4f64fd0..57478ded5 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,7 +2,7 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.2.50",
+  "version": "0.2.51",
   "npmClient": "yarn",
   "useWorkspaces": true,
   "command": {
diff --git a/packages/cache/package.json b/packages/cache/package.json
index d0db535e4..bb3347208 100644
--- a/packages/cache/package.json
+++ b/packages/cache/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/cache",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "description": "Generic object cache",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 88a18ce3d..b7c9fe552 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/cli",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "scripts": {
@@ -11,8 +11,8 @@
     "chat": "DEBUG='vulcanize:*, laconic:*' node dist/chat.js"
   },
   "dependencies": {
-    "@cerc-io/peer": "^0.2.50",
-    "@cerc-io/util": "^0.2.50",
+    "@cerc-io/peer": "^0.2.51",
+    "@cerc-io/util": "^0.2.51",
     "@ethersproject/providers": "^5.4.4",
     "@graphql-tools/utils": "^9.1.1",
     "@ipld/dag-cbor": "^8.0.0",
diff --git a/packages/codegen/package.json b/packages/codegen/package.json
index 283d30a88..516b1c953 100644
--- a/packages/codegen/package.json
+++ b/packages/codegen/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/codegen",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "description": "Code generator",
   "private": true,
   "main": "index.js",
@@ -20,7 +20,7 @@
   },
   "homepage": "https://github.com/cerc-io/watcher-ts#readme",
   "dependencies": {
-    "@cerc-io/util": "^0.2.50",
+    "@cerc-io/util": "^0.2.51",
     "@graphql-tools/load-files": "^6.5.2",
     "@poanet/solidity-flattener": "https://github.com/vulcanize/solidity-flattener.git",
     "@solidity-parser/parser": "^0.13.2",
diff --git a/packages/codegen/src/templates/package-template.handlebars b/packages/codegen/src/templates/package-template.handlebars
index 87a6303de..cee6a8d64 100644
--- a/packages/codegen/src/templates/package-template.handlebars
+++ b/packages/codegen/src/templates/package-template.handlebars
@@ -41,12 +41,12 @@
   "homepage": "https://github.com/cerc-io/watcher-ts#readme",
   "dependencies": {
     "@apollo/client": "^3.3.19",
-    "@cerc-io/cli": "^0.2.50",
-    "@cerc-io/ipld-eth-client": "^0.2.50",
-    "@cerc-io/solidity-mapper": "^0.2.50",
-    "@cerc-io/util": "^0.2.50",
+    "@cerc-io/cli": "^0.2.51",
+    "@cerc-io/ipld-eth-client": "^0.2.51",
+    "@cerc-io/solidity-mapper": "^0.2.51",
+    "@cerc-io/util": "^0.2.51",
     {{#if (subgraphPath)}}
-    "@cerc-io/graph-node": "^0.2.50",
+    "@cerc-io/graph-node": "^0.2.51",
     {{/if}}
     "@ethersproject/providers": "^5.4.4",
     "apollo-type-bigint": "^0.1.3",
diff --git a/packages/graph-node/package.json b/packages/graph-node/package.json
index 7351498f1..d840f4859 100644
--- a/packages/graph-node/package.json
+++ b/packages/graph-node/package.json
@@ -1,10 +1,10 @@
 {
   "name": "@cerc-io/graph-node",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "devDependencies": {
-    "@cerc-io/solidity-mapper": "^0.2.50",
+    "@cerc-io/solidity-mapper": "^0.2.51",
     "@ethersproject/providers": "^5.4.4",
     "@graphprotocol/graph-ts": "^0.22.0",
     "@nomiclabs/hardhat-ethers": "^2.0.2",
@@ -51,9 +51,9 @@
   "dependencies": {
     "@apollo/client": "^3.3.19",
     "@cerc-io/assemblyscript": "0.19.10-watcher-ts-0.1.2",
-    "@cerc-io/cache": "^0.2.50",
-    "@cerc-io/ipld-eth-client": "^0.2.50",
-    "@cerc-io/util": "^0.2.50",
+    "@cerc-io/cache": "^0.2.51",
+    "@cerc-io/ipld-eth-client": "^0.2.51",
+    "@cerc-io/util": "^0.2.51",
     "@types/json-diff": "^0.5.2",
     "@types/yargs": "^17.0.0",
     "bn.js": "^4.11.9",
diff --git a/packages/ipld-eth-client/package.json b/packages/ipld-eth-client/package.json
index 437a399ca..7a5fd96fc 100644
--- a/packages/ipld-eth-client/package.json
+++ b/packages/ipld-eth-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/ipld-eth-client",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "description": "IPLD ETH Client",
   "main": "dist/index.js",
   "scripts": {
@@ -20,7 +20,7 @@
   "homepage": "https://github.com/cerc-io/watcher-ts#readme",
   "dependencies": {
     "@apollo/client": "^3.7.1",
-    "@cerc-io/cache": "^0.2.50",
+    "@cerc-io/cache": "^0.2.51",
     "cross-fetch": "^3.1.4",
     "debug": "^4.3.1",
     "ethers": "^5.4.4",
diff --git a/packages/peer/package.json b/packages/peer/package.json
index cb8b87ea2..52fa44fc8 100644
--- a/packages/peer/package.json
+++ b/packages/peer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/peer",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "description": "libp2p module",
   "main": "dist/index.js",
   "exports": "./dist/index.js",
diff --git a/packages/rpc-eth-client/package.json b/packages/rpc-eth-client/package.json
index a14330264..f69d15e25 100644
--- a/packages/rpc-eth-client/package.json
+++ b/packages/rpc-eth-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/rpc-eth-client",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "description": "RPC ETH Client",
   "main": "dist/index.js",
   "scripts": {
@@ -19,9 +19,9 @@
   },
   "homepage": "https://github.com/cerc-io/watcher-ts#readme",
   "dependencies": {
-    "@cerc-io/cache": "^0.2.50",
-    "@cerc-io/util": "^0.2.50",
-    "@cerc-io/ipld-eth-client": "^0.2.50",
+    "@cerc-io/cache": "^0.2.51",
+    "@cerc-io/ipld-eth-client": "^0.2.51",
+    "@cerc-io/util": "^0.2.51",
     "cross-fetch": "^3.1.4",
     "debug": "^4.3.1",
     "ethers": "^5.4.4",
diff --git a/packages/rpc-eth-client/src/eth-client.ts b/packages/rpc-eth-client/src/eth-client.ts
index dfe0a171b..de48f940a 100644
--- a/packages/rpc-eth-client/src/eth-client.ts
+++ b/packages/rpc-eth-client/src/eth-client.ts
@@ -90,7 +90,8 @@ export class EthClient {
   }
 
   async getBlocks ({ blockNumber, blockHash }: { blockNumber?: number, blockHash?: string }): Promise<any> {
-    const blockHashOrBlockNumber = blockHash ?? blockNumber;
+    const blockNumberHex = blockNumber ? utils.hexValue(blockNumber) : undefined;
+    const blockHashOrBlockNumber = blockHash ?? blockNumberHex;
     assert(blockHashOrBlockNumber);
     let nodes: any[] = [];
     console.time(`time:eth-client#getBlocks-${JSON.stringify({ blockNumber, blockHash })}`);
@@ -98,7 +99,7 @@ export class EthClient {
     try {
       const rawBlock = await this._provider.send(
         blockHash ? 'eth_getBlockByHash' : 'eth_getBlockByNumber',
-        [utils.hexValue(blockHashOrBlockNumber), false]
+        [blockHashOrBlockNumber, false]
       );
 
       if (rawBlock) {
@@ -119,7 +120,7 @@ export class EthClient {
       }
     } catch (err: any) {
       // Check and ignore future block error
-      if (!(err.code === errors.SERVER_ERROR && err.error.message === "requested a future epoch (beyond 'latest')")) {
+      if (!(err.code === errors.SERVER_ERROR && err.error && err.error.message === "requested a future epoch (beyond 'latest')")) {
         throw err;
       }
     } finally {
@@ -134,13 +135,14 @@ export class EthClient {
   }
 
   async getFullBlocks ({ blockNumber, blockHash }: { blockNumber?: number, blockHash?: string }): Promise<any> {
-    const blockHashOrBlockNumber = blockHash ?? blockNumber;
+    const blockNumberHex = blockNumber ? utils.hexValue(blockNumber) : undefined;
+    const blockHashOrBlockNumber = blockHash ?? blockNumberHex;
     assert(blockHashOrBlockNumber);
 
     console.time(`time:eth-client#getFullBlocks-${JSON.stringify({ blockNumber, blockHash })}`);
     const rawBlock = await this._provider.send(
       blockHash ? 'eth_getBlockByHash' : 'eth_getBlockByNumber',
-      [utils.hexValue(blockHashOrBlockNumber), false]
+      [blockHashOrBlockNumber, false]
     );
     console.timeEnd(`time:eth-client#getFullBlocks-${JSON.stringify({ blockNumber, blockHash })}`);
 
@@ -162,7 +164,7 @@ export class EthClient {
       Extra: rawBlock.extraData,
       MixDigest: rawBlock.mixHash,
       Nonce: BigInt(rawBlock.nonce),
-      BaseFee: rawBlock.baseFeePerGas
+      BaseFee: BigInt(rawBlock.baseFeePerGas)
     };
 
     const rlpData = encodeHeader(header);
diff --git a/packages/solidity-mapper/package.json b/packages/solidity-mapper/package.json
index 9ac63e4d9..74aa83f70 100644
--- a/packages/solidity-mapper/package.json
+++ b/packages/solidity-mapper/package.json
@@ -1,10 +1,10 @@
 {
   "name": "@cerc-io/solidity-mapper",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "devDependencies": {
-    "@cerc-io/ipld-eth-client": "^0.2.50",
+    "@cerc-io/ipld-eth-client": "^0.2.51",
     "@ethersproject/abi": "^5.3.0",
     "@nomiclabs/hardhat-ethers": "^2.0.2",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
diff --git a/packages/test/package.json b/packages/test/package.json
index 1b07a5679..b8b7297ee 100644
--- a/packages/test/package.json
+++ b/packages/test/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/test",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "private": true,
diff --git a/packages/tracing-client/package.json b/packages/tracing-client/package.json
index a841f83db..576d1b4af 100644
--- a/packages/tracing-client/package.json
+++ b/packages/tracing-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/tracing-client",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "description": "ETH VM tracing client",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/util/package.json b/packages/util/package.json
index 19d652069..48a72a3bb 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -1,12 +1,12 @@
 {
   "name": "@cerc-io/util",
-  "version": "0.2.50",
+  "version": "0.2.51",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "dependencies": {
     "@apollo/utils.keyvaluecache": "^1.0.1",
     "@cerc-io/nitro-client": "^0.1.5",
-    "@cerc-io/solidity-mapper": "^0.2.50",
+    "@cerc-io/solidity-mapper": "^0.2.51",
     "@cerc-io/ts-channel": "1.0.3-ts-nitro-0.1.1",
     "@ethersproject/providers": "^5.4.4",
     "@graphql-tools/schema": "^9.0.10",
@@ -40,7 +40,7 @@
     "yargs": "^17.0.1"
   },
   "devDependencies": {
-    "@cerc-io/cache": "^0.2.50",
+    "@cerc-io/cache": "^0.2.51",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@types/express": "^4.17.14",
     "@types/fs-extra": "^9.0.11",
diff --git a/packages/util/src/common.ts b/packages/util/src/common.ts
index cf611a360..fdbf34a62 100644
--- a/packages/util/src/common.ts
+++ b/packages/util/src/common.ts
@@ -1,6 +1,7 @@
 import debug from 'debug';
 import assert from 'assert';
 import { DeepPartial } from 'typeorm';
+import { errors } from 'ethers';
 
 import {
   QUEUE_BLOCK_PROCESSING,
@@ -93,13 +94,24 @@ export const fetchBlocksAtHeight = async (
 
   // Try fetching blocks from eth-server until found.
   while (!blocks.length) {
-    console.time('time:common#_fetchBlocks-eth-server');
-    blocks = await indexer.getBlocks({ blockNumber });
-    console.timeEnd('time:common#_fetchBlocks-eth-server');
+    try {
+      console.time('time:common#_fetchBlocks-eth-server');
+      blocks = await indexer.getBlocks({ blockNumber });
+
+      if (!blocks.length) {
+        log(`No blocks fetched for block number ${blockNumber}, retrying after ${jobQueueConfig.blockDelayInMilliSecs} ms delay.`);
+        await wait(jobQueueConfig.blockDelayInMilliSecs);
+      }
+    } catch (err: any) {
+      // Handle null block error in case of Lotus EVM
+      if (!(err.code === errors.SERVER_ERROR && err.error && err.error.message === 'requested epoch was a null round')) {
+        throw err;
+      }
 
-    if (!blocks.length) {
-      log(`No blocks fetched for block number ${blockNumber}, retrying after ${jobQueueConfig.blockDelayInMilliSecs} ms delay.`);
-      await wait(jobQueueConfig.blockDelayInMilliSecs);
+      log(`Block ${blockNumber} requested was null (FEVM); Fetching next block`);
+      blockNumber++;
+    } finally {
+      console.timeEnd('time:common#_fetchBlocks-eth-server');
     }
   }
 
diff --git a/packages/util/src/eth.ts b/packages/util/src/eth.ts
index 9791aa5ea..8a1c508b4 100644
--- a/packages/util/src/eth.ts
+++ b/packages/util/src/eth.ts
@@ -118,7 +118,7 @@ export function getRawTransaction (tx: TransactionResponse): string {
   }
 
   // Extract the relevant parts of the transaction and signature
-  const txFields = 'accessList chainId data gasPrice gasLimit maxFeePerGas maxPriorityFeePerGas nonce to type value'.split(' ');
+  const txFields = 'accessList chainId data gasLimit maxFeePerGas maxPriorityFeePerGas nonce to type value'.split(' ');
   const sigFields = 'v r s'.split(' ');
 
   // Seriailze the signed transaction