Help! - Error: Let's Encrypt validation status 400

Can someone please help. I’m getting below error while enabling SSL on hestiacp. Till yesterday, it was working all good.

  1. I’m not using cloudflare.
  2. Not using ipv6
  3. Running on default template.

Error: Let’s Encrypt validation status 400 (captain1268.mystorelax.com). Details: 403:“207.180.208.182: Invalid response from http://captain1268.mystorelax.com/.well-known/acme-challenge/4rP_AVSvJsYIR1nmYsJGSJYH2VvH_lQw1ZVcMMSfEOk: 404”

==[Step 5]==
- status: 400
- url: https://acme-v02.api.letsencrypt.org/acme/chall-v3/154107031111/Z5g5_w
- nonce: 0102-eSJMQbKzAHwwk5n7FiMcIxgPc8OomRxHQzTtOlZ6mo
- validation: 
- details: Unable to update challenge :: authorization must be pending
- answer: HTTP/2 400 
server: nginx
date: Fri, 16 Sep 2022 17:11:42 GMT
content-type: application/problem+json
content-length: 144
boulder-requester: 720202697
cache-control: public, max-age=0, no-cache
link: <https://acme-v02.api.letsencrypt.org/directory>;rel="index"
replay-nonce: 0102-eSJMQbKzAHwwk5n7FiMcIxgPc8OomRxHQzTtOlZ6mo

{
  "type": "urn:ietf:params:acme:error:malformed",
  "detail": "Unable to update challenge :: authorization must be pending",
  "status": 400
}


==[Debug information Step 5]==
{
  "type": "http-01",
  "status": "invalid",
  "error": {
    "type": "urn:ietf:params:acme:error:unauthorized",
    "detail": "207.180.208.182: Invalid response from http://captain1268.mystorelax.com/.well-known/acme-challenge/4KAML7jW7tt22rYqHCAAjbUD2zqPjUtRb0SNba7OwNs: 404",
    "status": 403
  },
  "url": "https://acme-v02.api.letsencrypt.org/acme/chall-v3/154107031111/Z5g5_w",
  "token": "4KAML7jW7tt22rYqHCAAjbUD2zqPjUtRb0SNba7OwNs",
  "validationRecord": [
    {
      "url": "http://captain1268.mystorelax.com/.well-known/acme-challenge/4KAML7jW7tt22rYqHCAAjbUD2zqPjUtRb0SNba7OwNs",
      "hostname": "captain1268.mystorelax.com",
      "port": "80",
      "addressesResolved": [
        "207.180.208.182"
      ],
      "addressUsed": "207.180.208.182"
    }
  ],
  "validated": "2022-09-16T17:11:37Z"
}

"type": "urn:ietf:params:acme:error:unauthorized",
"detail": "207.180.208.182: Invalid response from http://captain1268.mystorelax.com/.well-known/acme-challenge/4KAML7jW7tt22rYqHCAAjbUD2zqPjUtRb0SNba7OwNs: 404",

Or nginx is not reloading or there is an issue with nginx template

Run nginx -t

Nginx -t doesn’t give any errors. Syntax is correct and successful.
What should I do as next steps?

Thanks

When I reload, it gets reloaded without any issues. I restarted the server as well. Suddenly it works for one of the subdomain but fails again with error 400 for next one when I try enabling ssl