Update app.py

app.py

@@ -172,7 +172,7 @@ def extract_text_from_file(
                 "document": existing_document
             }
         # Fetch dynamic schema based on document type
-        schema_doc = db.schema_collection.find_one({"document_type": document_type})
+        schema_doc = db.invoice_collection.find_one({"document_type": document_type})
         if not schema_doc:
             raise ValueError("No schema found for the given document type")