TheChecker to Lead Connector (Go High Level)

I'm trying to bulk validate emails in GHL...When trying to update an email validation response from TheChecker into a custom field or even a Tag in Go High Level - I receive the following error:

I'm surprised that the error gets thrown by simply Updating Contact and adding a tag. Any ideas?

Hey @Birchstone Advisors

Regarding your use case, we would recommend you use the "LeadConnector: Create or Update Contact" which will update and add the contact according to its presence.

Also, it will reduce one extra action step from your workflow.

Thanks...