Troubleshooting LOB API Errors for US Address Validation in Clay

I'm trying to use LOB via Clay to validate US Addresses. I made an account in LOB and brought over the API Key but when I run it against the CSV I uploaded in Clay I get error msgs. I've used a the secret key and published key same result for both. I'm under the Lob API limit to pull info. Any ideas what I'm doing wrong here?