Update create_database.py

create_database.py

@@ -19,7 +19,9 @@ def create_database(txt):
     chromadb.api.client.SharedSystemClient.clear_system_cache()
     
     chroma_cli = chromadb.Client()
-    chroma_cli.delete_collection(name="chat-with-docs")
+    existing_collections = [collection.name for collection in client.list_collections()]
+    if "chat-with-docs" in existing_collections:
+        chroma_cli.delete_collection(name="chat-with-docs")
     collection = chroma_cli.create_collection("chat-with-docs",embedding_function=embedding_fn)
     
     txt = split_list(txt,5000)