diff --git a/utils/app/clean.ts b/utils/app/clean.ts
index e07780f..7ae2755 100644
--- a/utils/app/clean.ts
+++ b/utils/app/clean.ts
@@ -39,21 +39,25 @@ export const cleanConversationHistory = (history: Conversation[]) => {
   // added system prompt for each conversation (3/21/23)
   // added folders (3/23/23)
 
-  let updatedHistory = [...history];
+  return history.reduce((acc: Conversation[], conversation) => {
+    try {
+      if (!conversation.model) {
+        conversation.model = OpenAIModels[OpenAIModelID.GPT_3_5];
+      }
 
-  updatedHistory.forEach((conversation) => {
-    if (!conversation.model) {
-      conversation.model = OpenAIModels[OpenAIModelID.GPT_3_5];
+      if (!conversation.prompt) {
+        conversation.prompt = DEFAULT_SYSTEM_PROMPT;
+      }
+
+      if (!conversation.folderId) {
+        conversation.folderId = 0;
+      }
+
+      acc.push(conversation);
+      return acc;
+    } catch (error) {
+      console.warn(`error while cleaning conversations' history. Removing culprit`, error);
     }
-
-    if (!conversation.prompt) {
-      conversation.prompt = DEFAULT_SYSTEM_PROMPT;
-    }
-
-    if (!conversation.folderId) {
-      conversation.folderId = 0;
-    }
-  });
-
-  return updatedHistory;
+    return acc;
+  }, []);
 };