diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb27bd74..abc7c5ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,10 @@
 # Changelog
+## [1.5.3] - 2024-02-28
+### Bug Fix
+- Added Error Handling on bundler side
+### Breaking Changes
+- Removed `possibleSolution` parameter from error handling and passed that value into `message` itself and added a new parameter called `rawError` to report what the exact error is
+
 ## [1.5.2] - 2024-02-12
 ### New
 - Added `GenericBundler` and `EtherspotBundler` as bundlerProviders and removed bundlerUrl params from SdkOptions
diff --git a/package-lock.json b/package-lock.json
index e3a6e62c..b008fe5a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@etherspot/prime-sdk",
-  "version": "1.5.1",
+  "version": "1.5.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@etherspot/prime-sdk",
-      "version": "1.5.1",
+      "version": "1.5.3",
       "license": "MIT",
       "dependencies": {
         "@apollo/client": "3.8.7",
diff --git a/package.json b/package.json
index 995ba200..4be3a6cd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@etherspot/prime-sdk",
-  "version": "1.5.2",
+  "version": "1.5.3",
   "description": "Etherspot Prime (Account Abstraction) SDK",
   "keywords": [
     "ether",
diff --git a/src/sdk/base/HttpRpcClient.ts b/src/sdk/base/HttpRpcClient.ts
index c0650ee3..bb3c9ea2 100644
--- a/src/sdk/base/HttpRpcClient.ts
+++ b/src/sdk/base/HttpRpcClient.ts
@@ -15,21 +15,39 @@ export class HttpRpcClient {
   initializing: Promise<void>;
 
   constructor(readonly bundlerUrl: string, readonly entryPointAddress: string, readonly chainId: number) {
-    this.userOpJsonRpcProvider = new ethers.providers.JsonRpcProvider(this.bundlerUrl, {
-      name: 'Connected bundler network',
-      chainId,
-    });
-    this.initializing = this.validateChainId();
+    try {
+      this.userOpJsonRpcProvider = new ethers.providers.JsonRpcProvider({
+        url: this.bundlerUrl
+      }, {
+        name: 'Connected bundler network',
+        chainId,
+      });
+      this.initializing = this.validateChainId();
+    } catch (err) {
+      if (err.message.includes('failed response'))
+        throw new ErrorHandler(err.message, 2);
+      if (err.message.includes('timeout'))
+        throw new ErrorHandler(err.message, 3);
+      throw new Error(err.message);
+    }
   }
 
   async validateChainId(): Promise<void> {
-    // validate chainId is in sync with expected chainid
-    const chain = await this.userOpJsonRpcProvider.send('eth_chainId', []);
-    const bundlerChain = parseInt(chain);
-    if (bundlerChain !== this.chainId) {
-      throw new Error(
-        `bundler ${this.bundlerUrl} is on chainId ${bundlerChain}, but provider is on chainId ${this.chainId}`,
-      );
+    try {
+      // validate chainId is in sync with expected chainid
+      const chain = await this.userOpJsonRpcProvider.send('eth_chainId', []);
+      const bundlerChain = parseInt(chain);
+      if (bundlerChain !== this.chainId) {
+        throw new Error(
+          `bundler ${this.bundlerUrl} is on chainId ${bundlerChain}, but provider is on chainId ${this.chainId}`,
+        );
+      }
+    } catch (err) {
+      if (err.message.includes('failed response'))
+        throw new ErrorHandler(err.message, 400);
+      if (err.message.includes('timeout'))
+        throw new ErrorHandler(err.message, 404);
+      throw new Error(err.message);
     }
   }
 
diff --git a/src/sdk/errorHandler/constants.ts b/src/sdk/errorHandler/constants.ts
index f20c64ca..82b8fc5d 100644
--- a/src/sdk/errorHandler/constants.ts
+++ b/src/sdk/errorHandler/constants.ts
@@ -1,4 +1,5 @@
 export const errorMsg = {
+    '429': 'Rate limit exceeded for the given bundler api key. Please contact bundler team for increasing bandwidth.', // Rate limit quota execeeded
     '-32521': 'Check for balance in your Smart wallet', // execution reverted
     '-32500': `Please make sure you have enough funds for wallet creation.`, // transaction rejected by entryPoint's simulateValidation, during wallet creation or validation
     '-32501': `Check paymaster data`,  // transaction rejected by paymaster's validatePaymasterUserOp
@@ -8,7 +9,10 @@ export const errorMsg = {
     '-32505': 'Factory or Wallet or Paymaster not staked or unstake-delay is too low. Try with another entity', // transaction rejected because some entity (or signature aggregator) stake or unstake-delay is too low
     '-32506': 'Please create an issue https://github.com/etherspot/etherspot-prime-sdk/issues or ticket on https://discord.etherspot.io', // transaction rejected because wallet specified unsupported signature aggregator
     '-32507': 'Please create an issue https://github.com/etherspot/etherspot-prime-sdk/issues or ticket on https://discord.etherspot.io', // transaction rejected because of wallet signature check failed (or paymaster signature, if the paymaster uses its data as signature)
-    '1': 'Make sure the sdk fn called has valid parameters', // sdk Validation errors
+    '1': 'Make sure the sdk fn called has valid parameters', // sdk Validation errors,
+    '400': 'Either the bundler url is unreachable or the api key rate limit has reached. Please contact support for more info', // Bundler using ethers package returning SERVER_ERROR
+    '404': 'The request sent has reached timeout. Check your internet access or the bundler url if using etherspot bundler, the rate limit might be reached Please contact support for more info', // ethers package 
+    '-429': 'Rate limit exceeded for the given bundler api key. Please contact bundler team for increasing bandwidth.', // Rate limit quota execeeded
 }
 
 export const entryPointErrorMsg = {
diff --git a/src/sdk/errorHandler/errorHandler.service.ts b/src/sdk/errorHandler/errorHandler.service.ts
index 8340acef..e52909ad 100644
--- a/src/sdk/errorHandler/errorHandler.service.ts
+++ b/src/sdk/errorHandler/errorHandler.service.ts
@@ -1,19 +1,17 @@
 import { entryPointErrorMsg, errorMsg } from "./constants";
 
 export class ErrorHandler extends Error {
-    public possibleSolution: string = null;
+    public rawError: string = null;
     constructor(public error: string, public code?: number) {
         super(error);
-        this.error = error;
+        this.rawError = error;
         this.code = code;
         if (code) {
-            this.possibleSolution = errorMsg[code.toString()];
-            // if (error.includes('AA33 reverted')) {
-            //     this.possibleSolution += ' If using a token, make sure that approval transaction is done for the requested operation and have enough tokens to spend for this transaction.'
-            // }
+            this.message = errorMsg[code.toString()];
             if (entryPointErrorMsg[error]) {
-                this.possibleSolution = entryPointErrorMsg[error];
+                this.message = entryPointErrorMsg[error];
             }
+            
         }
     }
 }
\ No newline at end of file
diff --git a/src/sdk/index.ts b/src/sdk/index.ts
index 16f02391..285e588b 100644
--- a/src/sdk/index.ts
+++ b/src/sdk/index.ts
@@ -2,7 +2,6 @@ import { DataUtils } from './dataUtils';
 import { PrimeSdk } from './sdk';
 
 export * from './api';
-export * from './data';
 export * from './dto';
 export * from './interfaces';
 export * from './network';