diff --git a/.gitignore b/.gitignore
index 35a747e88..011bf7796 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,8 @@ logs
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+yarn.lock
+package-lock.json
 
 # Runtime data
 pids
diff --git a/package.json b/package.json
index ed2f460c1..71dadf893 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "web3": "1.0.0-beta.52"
   },
   "scripts": {
-    "start": "react-scripts start",
+    "start": "react-scripts --openssl-legacy-provider start",
     "build": "npm run sitemap && react-scripts --max_old_space_size=8192 build",
     "test": "react-scripts test",
     "eject": "react-scripts eject",
diff --git a/src/components/AiMarketplace/MainSection/Filter/ToolBar/styles.js b/src/components/AiMarketplace/MainSection/Filter/ToolBar/styles.js
index 8ea82aaee..39e065fc3 100644
--- a/src/components/AiMarketplace/MainSection/Filter/ToolBar/styles.js
+++ b/src/components/AiMarketplace/MainSection/Filter/ToolBar/styles.js
@@ -62,6 +62,7 @@ export const useStyles = makeStyles(theme => ({
     "@media(max-width: 548px)": { margin: "15px 0 0" },
   },
   iconsContainer: {
+    minHeight: 34,
     display: "flex",
     alignItems: "center",
     justifyContent: "flex-end",
@@ -73,7 +74,7 @@ export const useStyles = makeStyles(theme => ({
       cursor: "pointer",
       "& span": {
         color: theme.palette.text.lightShadedGray,
-        fontSize: 17,
+        fontSize: 18,
       },
     },
     "@media(max-width: 768px)": { paddingTop: 15 },
diff --git a/src/components/ServiceDetails/CreatorDetails/Contacts/index.js b/src/components/ServiceDetails/CreatorDetails/Contacts/index.js
index 689239a91..abc132969 100644
--- a/src/components/ServiceDetails/CreatorDetails/Contacts/index.js
+++ b/src/components/ServiceDetails/CreatorDetails/Contacts/index.js
@@ -55,10 +55,10 @@ const Contacts = ({ contacts, show, handleClose, classes }) => {
             <ListItem alignItems="flex-start" divider>
               <ListItemText
                 primary="Support email"
-                secondary={supportContact.email_id}
+                secondary={supportContact.email}
                 secondaryTypographyProps={{
                   component: "a",
-                  href: `mailTo:${supportContact.email_id}`,
+                  href: `mailTo:${supportContact.email}`,
                   target: "_blank",
                   rel: "noopener noreferrer",
                   className: classes.anchor,
diff --git a/src/components/ServiceDetails/ExistingModel/index.js b/src/components/ServiceDetails/ExistingModel/index.js
index 7a72328bf..4981d8823 100644
--- a/src/components/ServiceDetails/ExistingModel/index.js
+++ b/src/components/ServiceDetails/ExistingModel/index.js
@@ -35,7 +35,6 @@ const ExistingModel = ({
   const [sdkService, setSdkService] = useState();
   const [alert, setAlert] = useState({});
   const dispatch = useDispatch();
-
   const getServiceName = () => {
     return training.training_methods[0].split(".")[1].split("/")[0];
   };
diff --git a/src/components/ServiceDetails/TrainingModels/CreateModel/ModelInfo/index.js b/src/components/ServiceDetails/TrainingModels/CreateModel/ModelInfo/index.js
index 3a8ae098e..d50acfdd7 100644
--- a/src/components/ServiceDetails/TrainingModels/CreateModel/ModelInfo/index.js
+++ b/src/components/ServiceDetails/TrainingModels/CreateModel/ModelInfo/index.js
@@ -57,9 +57,17 @@ const ModelInfo = ({
       publicAccess: enableAccessModel,
       address: !enableAccessModel ? ethAddress : [],
     };
-    return await serviceClient.createModel(address, params);
+    const param = {
+        grpcMethod: training.training_methods[0],
+        grpcService: serviceName,
+        address,
+    };
+    const response = await serviceClient.getExistingModel(param);
+    if(response.length < 20)
+    {
+      return await serviceClient.createModel(address, params);
+    }
   };
-
   const onUpdate = () => {
     const updateModelParams = {
       trainingModelName,
@@ -70,6 +78,7 @@ const ModelInfo = ({
     updateModel(updateModelParams);
   };
 
+
   const onNext = async () => {
     try {
       startMMconnectLoader();
@@ -77,7 +86,6 @@ const ModelInfo = ({
       const address = await sdk.account.getAddress();
       const availableUserWallets = await fetchAvailableUserWallets();
       const addressAlreadyRegistered = availableUserWallets.some(wallet => wallet.address.toLowerCase() === address);
-
       if (!addressAlreadyRegistered) {
         await registerWallet(address, walletTypes.METAMASK);
       }
diff --git a/src/components/ServiceDetails/TrainingModels/CreateModel/index.js b/src/components/ServiceDetails/TrainingModels/CreateModel/index.js
index fbd48f2a4..dea51e3ba 100644
--- a/src/components/ServiceDetails/TrainingModels/CreateModel/index.js
+++ b/src/components/ServiceDetails/TrainingModels/CreateModel/index.js
@@ -9,7 +9,7 @@ import Payment from "./Payment";
 import Finish from "./Finish";
 
 const CreateModel = (props) => {
-  const { service, classes, training, modelDetailsOnEdit, cancelEditModel, updateModel, deleteModel, } = props;
+  const { service, classes, training, modelDetailsOnEdit, cancelEditModel, updateModel, deleteModel } = props;
   const [activeSection, setActiveSection] = React.useState(1);
   const [modelData, setModelData] = useState({});
   const [trainModelId, setTrainModelId] = useState();
@@ -19,7 +19,6 @@ const CreateModel = (props) => {
   const onBackClick = () => {
     setActiveSection(activeSection - 1);
   };
-
   const createModelTabs = [
     {
       key: "modelInfo",
diff --git a/src/components/ServiceDetails/TrainingModels/index.js b/src/components/ServiceDetails/TrainingModels/index.js
index 04b109bae..2f53bc0fc 100644
--- a/src/components/ServiceDetails/TrainingModels/index.js
+++ b/src/components/ServiceDetails/TrainingModels/index.js
@@ -9,21 +9,22 @@ import ProjectDetails from "../ProjectDetails";
 import InfoOutlinedIcon from "@material-ui/icons/InfoOutlined";
 import CreateModel from "./CreateModel";
 
-const TrainingModels = ({
-  classes,
-  service,
-  training,
-  createModelCalled,
-  modelDetailsOnEdit,
-  cancelEditModel,
-  updateModel,
-  editModel,
-  deleteModel,
-}) => {
+const TrainingModels = (props) => {
+  const {
+    classes,
+    service,
+    training,
+    createModelCalled,
+    modelDetailsOnEdit,
+    cancelEditModel,
+    updateModel,
+    editModel,
+    deleteModel
+  } = props
   const [showCreateModel, setShowCreateModel] = useState(false);
-
   const handleRequestModel = () => {
     setShowCreateModel(true);
+    
   };
 
   const RenderExistingModel = useCallback(() => {
diff --git a/src/components/ServiceDetails/index.js b/src/components/ServiceDetails/index.js
index 586abaa6f..1436e49d5 100644
--- a/src/components/ServiceDetails/index.js
+++ b/src/components/ServiceDetails/index.js
@@ -42,7 +42,7 @@ class ServiceDetails extends Component {
       modelDetailsOnEdit: undefined,
     };
   }
-
+  
   initializeService = async () => {
     const { org_id, service_id } = this.props.service;
     const sdk = await initSdk();
@@ -245,7 +245,6 @@ class ServiceDetails extends Component {
     }
 
     const seoURL = `${process.env.REACT_APP_BASE_URL}/servicedetails/org/${orgId}/service/${serviceId}`;
-
     return (
       <div>
         <SeoMetadata
diff --git a/src/components/common/NetworkChangeOverlay/index.js b/src/components/common/NetworkChangeOverlay/index.js
index f4ba1a3c7..1793689ff 100644
--- a/src/components/common/NetworkChangeOverlay/index.js
+++ b/src/components/common/NetworkChangeOverlay/index.js
@@ -12,7 +12,12 @@ import { useStyles } from "./styles";
 import { walletTypes } from "../../../Redux/actionCreators/UserActions";
 import { initSdk } from "../../../utility/sdk";
 import { Networks } from "../../../config/Networks";
-// import { type } from "jquery";
+import { ethereumEvents,ethereumMethods } from "../../../utility/snetSdk";
+import { isNil } from "lodash";
+import Web3 from "web3";
+
+const ethereum = window.ethereum;
+const web3 = new Web3(ethereum, null, {});
 
 const accountChangeAlert = {
   header: "Incorrect Metamask Account",
@@ -36,8 +41,20 @@ class NetworkChangeOverlay extends Component {
   }
 
   sdk;
+  validateChainId = chainIdHex => {
+    const chainId = web3.utils.hexToNumber(chainIdHex);
+    if (chainId !== Number(process.env.REACT_APP_ETH_NETWORK)) {
+      this.setState({ invalidMetaMaskDetails: true, alert: networkChangeAlert });
+    } else {
+      this.setState({ invalidMetaMaskDetails: false, alert: {} });
+    }
+  };
 
   componentDidMount() {
+    if (!isNil(ethereum)) {
+      ethereum.request({ method: ethereumMethods.REQUEST_CHAIN_ID }).then(this.validateChainId);
+      ethereum.on(ethereumEvents.CHAIN_CHANGED, this.validateChainId);
+    }
     window.addEventListener("snetMMAccountChanged", this.handleMetaMaskAccountChange);
     window.addEventListener("snetMMNetworkChanged", this.handleMetaMaskNetworkChange);
   }
diff --git a/src/utility/snetSdk.js b/src/utility/snetSdk.js
new file mode 100644
index 000000000..cb09f312f
--- /dev/null
+++ b/src/utility/snetSdk.js
@@ -0,0 +1,9 @@
+var ethereumMethods = {
+    REQUEST_ACCOUNTS: "eth_requestAccounts",
+    REQUEST_CHAIN_ID: "eth_chainId"
+  };
+  exports.ethereumMethods = ethereumMethods;
+  var ethereumEvents = {
+    CHAIN_CHANGED: "chainChanged"
+  };
+  exports.ethereumEvents = ethereumEvents;
\ No newline at end of file