Ejabberd mod_http_upload error 405 not allowed

I cannot get mod_http_upload to work as I keep getting error 405 Not Allowed when I perform Service Discovery. Below is my configuration:

Access:
   local:
     all: allow

listen:
     port: 5443
     module: ejabberd_http
     tls: false
     request_handlers:
        "upload": mod_http_upload

Modules:
mod_http_upload:
    #host: "upload.@HOST@"
    access: local
    thumbnail: false
    docroot: "/home/xmpp/upload"
    put_url: "http://@HOST@:5443"

mod_muc:
host: "conference.@HOST@"
access: local
access_create: local
access_persistent: local
access_admin: local

I use the ACL called local for both modules and mod_muc works fine.

This is the output/log:

Output and log:
[debug] <0.480.0>@ejabberd_receiver:process_data:284 Received XML on stream = <<"">>

to {jid,<<>>,<<"upload.example.com">>,<<>>,<<>>,<<"upload.example.com">>,<<>>}
packet {iq,<<"216">>,get,<<"en">>,undefined,{jid,<<>>,<<"upload.example.com">>,<<>>,<<>>,<<"upload.example.com">>,<<>>},[{xmlel,<<"query">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/disco#info">>}],[]}]}

from {jid,<<>>,<<"upload.example.com">>,<<>>,<<>>,<<"upload.example.com">>,<<>>}
packet {iq,<<"216">>,error,<<"en">>,{jid,<<>>,<<"upload.example.com">>,<<>>,<<>>,<<"upload.example.com">>,<<>>},undefined,[{xmlel,<<"query">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/disco#info">>}],[]},{stanza_error,cancel,405,<<>>,'not-allowed',undefined,[]}]}

<0.481.0>@ejabberd_c2s:send_text:1619 Send XML on stream = <<"">>

I am using verion 16.09. I've been scratching my head for over 2 days and all in vain. Please help me.