Upvote:1
Your first ESTA is probably no longer valid. You can check at https://esta.cbp.dhs.gov.
See for example When my ESTA expires how do I renew my application?
You do not need to wait until your ESTA expires to re-apply. You may do so at any time before, on or after the expiration date of your existing ESTA. Should you receive the message "A valid, approved application with more than 30 days remaining has been found for this passport. Submitting this application will require payment for this application and will then cancel the existing application." you will simply continue with the application to begin your new application. Your prior ESTA will be cancelled and replaced with your new application.
Even if your first ESTA was not cancelled because of some error in the system, it isn't your fault, and you should expect no problems to result from it.