I'm using Alchemy for an airdrop, but after completing airdrop, my confirmTransaction function is not working, which prevents below code from running

    try {          let signature = await connection.requestAirdrop(            new PublicKey(publicKey),            LAMPORTS_PER_SOL          );          console.log("Airdrop complete");            await connection.confirmTransaction({             signature,          });        // **code is not reaching here**        const balance = await connection.getBalance(new PublicKey(publicKey));        const balanceInSOL = balance / LAMPORTS_PER_SOL;        console.log(`Balance of wallet ${publicKey} is: ${balanceInSOL} SOL`);   } catch (error) {      console.error("An error occurred:", error);   }