Where did i go wrong?

const tokenMetadata = {
    name: name,
    symbol: symbol,
    uri: uri,
    sellerFeeBasisPoints: 0,
    creators: null,
    collection: null,
    uses: null,
  } as DataV2

  // transaction to create metadata account
  const transaction = new web3.Transaction().add(
    createCreateMetadataAccountV3Instruction(
      {
        metadata: metadataPDA,
        mint: mint,
        mintAuthority: user.publicKey,
        payer: user.publicKey,
        updateAuthority: user.publicKey,
      },
      {
        createMetadataAccountArgsV3: {
          data: tokenMetadata,
          isMutable: true,
          collectionDetails: null
        },
      }
    )    

I'm getting "SendTransactionError: failed to send transaction: Transaction simulation failed: Error processing Instruction 0: Program failed to complete" Where did i go wrong?

const tokenMetadata = {
    name: name,
    symbol: symbol,
    uri: uri,
    sellerFeeBasisPoints: 0,
    creators: null,
    collection: null,
    uses: null,
  } as DataV2

  // transaction to create metadata account
  const transaction = new web3.Transaction().add(
    createCreateMetadataAccountV3Instruction(
      {
        metadata: metadataPDA,
        mint: mint,
        mintAuthority: user.publicKey,
        payer: user.publicKey,
        updateAuthority: user.publicKey,
      },
      {
        createMetadataAccountArgsV3: {
          data: tokenMetadata,
          isMutable: true,
          collectionDetails: null
        },
      }
    )