Let's Debug

Test result for foo.monkas.xyz using http-01

Debug
Requests made to the domain
Request to: foo.monkas.xyz/149.56.101.173, Result: [Address=149.56.101.173,Address Type=IPv4,Server=Apache,HTTP Status=404], Issue:
Trace:
@0ms: Making a request to http://foo.monkas.xyz/.well-known/acme-challenge/letsdebug-test (using initial IP 149.56.101.173)
@0ms: Dialing 149.56.101.173
@19ms: Server response: HTTP 404 Not Found

Debug
A and AAAA records found for this domain
foo.monkas.xyz. 0 IN A 149.56.101.173
Challenge update failures for foo.monkas.xyz in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/49415806
acme: error code 403 "urn:ietf:params:acme:error:unauthorized": Invalid response from http://foo.monkas.xyz/.well-known/acme-challenge/nO_K6YE6WR0g7WjBkkSTe_pYTHwhkL9JLlfOxhkZElw [149.56.101.173]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>404 Not Found</title>\n</head><body>\n<h1>Not Found</h1>\n<p"
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for foo.monkas.xyz is: xyz
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Sep 10 12:29:31 2019. Sat in queue for 2ms. Completed in 12s. Hide verbose information.