How to prevent “You can use unconfirmed UTXOs, but using them will create a series of transactions that are rejected by the mempool”?

We are experiencing an issue with Bitcoind that causes frequent errors.

“You can use unconfirmed UTXOs, but using them will create a series of transactions that are rejected by the mempool.”

The issue appears to be exacerbated by the high volume of transactions generated by bitcoinfaucet.uo1.net, leading to long chains of unconfirmed transactions. How do I avoid this error and ensure my transaction is approved by Mempool?