SSL Certificate Invalid

I’m hoping someone out there can shed some light on an issue I’m facing. I created droplet via the marketplace (Wordpress 1-click install). The steps I’m taking are as follows

• Domain is hosted in Google Domains, so I’m using Digital Ocean custom name servers there.
• Created a droplet using the WordPress-1-Click from the Marketplace
• Created 2 A records in Digital Ocean control panel that point to the new droplets IP address
• SSH’d into the server answered the script prompts. During the Let’s Encrypt section of the script I get some red text that the challenge has failed and some detail below it. (The IP address in brackets below is not what I have listed in my A records in digital ocean. The error was altered for privacy)

Domain: mysitename.dev
   Type:   unauthorized
   Detail: Invalid response from
   https://mysitename.dev/.well-known/acme-challenge/r8PzLOEgnfbHr0eBfIPO09ctTPSFadfD-hKdU4qAQ3E
   [198.111.74.66]: 404

• The script completes and instructs me to go to my website in the browser to complete the set up, but I’m blocked by the browser because the certificate is invalid.

Can anyone tell me what is going on here? I’ve attempted destroying/recreating the droplet about 5 times.