onetimesecret: Emails not being sent

We are still experiencing emails not being sent even though the Recent Secrets UI shows a send email.

The API is returning an 404 with the following response body {"message":"An error occurred :["}

curl -v -X POST \
  --data-urlencode "secret=My Super Secret Message" \
  --data-urlencode "ttl=604800" \
  --data-urlencode "recipient=name@example.com" \
  -u "account@example.com:XXXXXXX" \
  https://onetimesecret.com/api/v1/share 

> POST /api/v1/share HTTP/1.1
> Host: onetimesecret.com
> Authorization: Basic XXXXXXX
> User-Agent: curl/7.64.1
> Accept: */*
> Content-Length: 82
> Content-Type: application/x-www-form-urlencoded
> 

< HTTP/1.1 404 Not Found
< Server: nginx/1.6.2
< Date: Thu, 11 Mar 2021 19:53:03 GMT
< Content-Type: application/json; charset=utf-8
< Transfer-Encoding: chunked
< Connection: keep-alive
< 
{"message":"An error occurred :["}