diff --git a/src/fetchers/opensea.js b/src/fetchers/opensea.js
index 7080664..b8ebe17 100644
--- a/src/fetchers/opensea.js
+++ b/src/fetchers/opensea.js
@@ -13,6 +13,8 @@ const apiKey = process.env.OPENSEA_COLLECTION_API_KEY
   ? process.env.OPENSEA_COLLECTION_API_KEY.trim()
   : process.env.OPENSEA_API_KEY.trim();
 
+const osTestnetsChainIds = [4, 5, 11155111, 80001, 84531, 999];
+
 const getOSNetworkName = (chainId) => {
   switch (chainId) {
     case 1:
@@ -50,13 +52,9 @@ const getOSNetworkName = (chainId) => {
   }
 };
 
-const getOSTestNetsChainIds = () => {
-  return [4, 5, 11155111, 80001, 84531, 999];
-};
-
 const getUrlForApi = (api, chainId, contract, tokenId, network, slug) => {
   const baseUrl = `${
-    !getOSTestNetsChainIds().includes(chainId)
+    !osTestnetsChainIds.includes(chainId)
       ? "https://api.opensea.io"
       : "https://testnets-api.opensea.io"
   }`;
@@ -80,7 +78,8 @@ const getUrlForApi = (api, chainId, contract, tokenId, network, slug) => {
 const getOSData = async (api, chainId, contract, tokenId, slug) => {
   const network = getOSNetworkName(chainId);
   const url = getUrlForApi(api, chainId, contract, tokenId, network, slug);
-  const headers = !getOSTestNetsChainIds().includes(chainId)
+
+  const headers = !osTestnetsChainIds.includes(chainId)
     ? {
         url,
         "X-API-KEY": apiKey,
@@ -92,7 +91,7 @@ const getOSData = async (api, chainId, contract, tokenId, slug) => {
 
   try {
     const osResponse = await axios.get(
-      !getOSTestNetsChainIds().includes(chainId) ? process.env.OPENSEA_BASE_URL_ALT || url : url,
+      !osTestnetsChainIds.includes(chainId) ? process.env.OPENSEA_BASE_URL_ALT || url : url,
       { headers }
     );
 
@@ -305,12 +304,12 @@ export const fetchTokens = async (chainId, tokens) => {
   }
 
   const url = `${
-    ![4, 5].includes(chainId) ? "https://api.opensea.io" : "https://testnets-api.opensea.io"
+    !osTestnetsChainIds.includes(chainId) ? "https://api.opensea.io" : "https://testnets-api.opensea.io"
   }/api/v1/assets?${searchParams.toString()}`;
 
   const data = await axios
-    .get(![4, 5].includes(chainId) ? process.env.OPENSEA_BASE_URL_ALT || url : url, {
-      headers: ![4, 5].includes(chainId)
+    .get(!osTestnetsChainIds.includes(chainId) ? process.env.OPENSEA_BASE_URL_ALT || url : url, {
+      headers: !osTestnetsChainIds.includes(chainId)
         ? {
             url,
             "X-API-KEY": process.env.OPENSEA_API_KEY.trim(),
diff --git a/src/shared/utils.js b/src/shared/utils.js
index 186c948..607d0ef 100644
--- a/src/shared/utils.js
+++ b/src/shared/utils.js
@@ -38,7 +38,7 @@ export const normalizeMetadata = (collection) => {
       key: "twitterUsername",
       normalize: (value) => {
         // if the value is a url, return the username
-        if (value.includes("twitter.com")) {
+        if (value?.includes("twitter.com")) {
           return value.split("/")[3];
         }
 
@@ -48,7 +48,7 @@ export const normalizeMetadata = (collection) => {
     twitter: {
       key: "twitterUrl",
       normalize: (value) => {
-        if (value.includes("twitter.com")) {
+        if (value?.includes("twitter.com")) {
           return value;
         }
         // if the value is a username, return the url
@@ -58,7 +58,7 @@ export const normalizeMetadata = (collection) => {
     telegram: {
       key: "telegramUrl",
       normalize: (value) => {
-        if (value.includes("t.me")) {
+        if (value?.includes("t.me")) {
           return value;
         }
 
@@ -68,7 +68,7 @@ export const normalizeMetadata = (collection) => {
     instagram: {
       key: "instagramUrl",
       normalize: (value) => {
-        if (value.includes("instagram.com")) {
+        if (value?.includes("instagram.com")) {
           return value;
         }
       },