Add app.py

app.py

@@ -89,8 +89,7 @@ def upload_to_blockchain(ipfs_hash):
         contract_address = st.secrets["ContractAddress"]
         checksum_address = w3.to_checksum_address(contract_address)
     except Exception as e:
-        raise ValueError(f"Invalid contract address: {contract_address}
-Error: {e}")
+        raise ValueError(f"Invalid contract address: {contract_address} Error: {e}")
 
     try:
         assert isinstance(abi, list), "ABI must be a list"