Upgrade check error

When I try to check for updates I get the following error message.
How can I fix this?

I have removed some identifying information and also placed x's to replace information. There is the exact number of x's as there were numbers. 

1&
2&_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx9786&HTTP_UPGRADE_INSECURE_REQUESTS=1
3
4?&_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx&HTTP_UPGRADE_INSECURE_REQUESTS=1
5?&_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx&HTTP_UPGRADE_INSECURE_REQUESTS=1
6?&_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx&HTTP_UPGRADE_INSECURE_REQUESTS=1
Redirect Page Not Found

Key : 404;http://redirect.reckon.com.au:80/reckonaccounts_2016_NZ_PersonalPlus/Update
QueryString : ?&_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx&HTTP_UPGRADE_INSECURE_REQUESTS=1

post params
-------
Request.Params[_ga] = GA1.3.xxxxxxxxx.xxxxxxxxxx
Request.Params[HTTP_UPGRADE_INSECURE_REQUESTS] = 1

-------

key length = 2
decode length : 4
decode[0] : reckonaccounts
decode[1] : 2016
decode[2] : nz
decode[3] : personalplus
vchKey : update
key[0] : reckonaccounts_2016_nz_personalplus
key[1] : update
Query String : ?&_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx&HTTP_UPGRADE_INSECURE_REQUESTS=1

exec spRedirectGetRedirect 'reckonaccounts', '2016', 'nz', 'personalplus', 'update'

Request.Params[] = 404;http://redirect.reckon.com.au:80/reckonaccounts_2016_NZ_PersonalPlus/Update
Request.Params[_ga] = GA1.3.xxxxxxxxx.xxxxxxxxxx
Request.Params[ASP.NET_SessionId] = removed for privacy
Request.Params[ALL_HTTP] = HTTP_CONNECTION:keep-alive HTTP_ACCEPT:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 HTTP_ACCEPT_ENCODING:gzip,deflate HTTP_ACCEPT_LANGUAGE:en-US,en;q=0.8 HTTP_COOKIE:_ga=GA1.3.xxxxxxxxx.xxxxxxxxxx HTTP_HOST:redirect.reckon.com.au HTTP_USER_AGENT:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36 HTTP_UPGRADE_INSECURE_REQUESTS:1 
Request.Params[ALL_RAW] = Connection: keep-alive Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Encoding: gzip,deflate Accept-Language: en-US,en;q=0.8 Cookie: _ga=GA1.3.xxxxxxxxx.xxxxxxxxxx Host: redirect.reckon.com.au User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36 Upgrade-Insecure-Requests: 1 
Request.Params[APPL_MD_PATH] = /LM/W3SVC/877129692/Root
Request.Params[APPL_PHYSICAL_PATH] = C:\Inetpub\ReckonRedirect\
Request.Params[AUTH_TYPE] = 
Request.Params[AUTH_USER] = 
Request.Params[AUTH_PASSWORD] = 
Request.Params[LOGON_USER] = 
Request.Params[REMOTE_USER] = 
Request.Params[CERT_COOKIE] = 
Request.Params[CERT_FLAGS] = 
Request.Params[CERT_ISSUER] = 
Request.Params[CERT_KEYSIZE] = 
Request.Params[CERT_SECRETKEYSIZE] = 
Request.Params[CERT_SERIALNUMBER] = 
Request.Params[CERT_SERVER_ISSUER] = 
Request.Params[CERT_SERVER_SUBJECT] = 
Request.Params[CERT_SUBJECT] = 
Request.Params[CONTENT_LENGTH] = 0
Request.Params[CONTENT_TYPE] = 
Request.Params[GATEWAY_INTERFACE] = CGI/1.1
Request.Params[HTTPS] = off
Request.Params[HTTPS_KEYSIZE] = 
Request.Params[HTTPS_SECRETKEYSIZE] = 
Request.Params[HTTPS_SERVER_ISSUER] = 
Request.Params[HTTPS_SERVER_SUBJECT] = 
Request.Params[INSTANCE_ID] = 877129692
Request.Params[INSTANCE_META_PATH] = /LM/W3SVC/877129692
Request.Params[LOCAL_ADDR] = removed for privacy
Request.Params[PATH_INFO] = /redirect.aspx
Request.Params[PATH_TRANSLATED] = C:\Inetpub\ReckonRedirect\redirect.aspx
Request.Params[QUERY_STRING] = 404;http://redirect.reckon.com.au:80/reckonaccounts_2016_NZ_PersonalPlus/Update
Request.Params[REMOTE_ADDR] = removed for privacy
Request.Params[REMOTE_HOST] = removed for privacy
Request.Params[REMOTE_PORT] = removed for privacy
Request.Params[REQUEST_METHOD] = GET
Request.Params[SCRIPT_NAME] = /redirect.aspx
Request.Params[SERVER_NAME] = redirect.reckon.com.au
Request.Params[SERVER_PORT] = 80
Request.Params[SERVER_PORT_SECURE] = 0
Request.Params[SERVER_PROTOCOL] = HTTP/1.1
Request.Params[SERVER_SOFTWARE] = Microsoft-IIS/6.0
Request.Params[URL] = /redirect.aspx
Request.Params[HTTP_CONNECTION] = keep-alive
Request.Params[HTTP_ACCEPT] = text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Request.Params[HTTP_ACCEPT_ENCODING] = gzip,deflate
Request.Params[HTTP_ACCEPT_LANGUAGE] = en-US,en;q=0.8
Request.Params[HTTP_COOKIE] = _ga=GA1.3.xxxxxxxxx.xxxxxxxxxx
Request.Params[HTTP_HOST] = redirect.reckon.com.au
Request.Params[HTTP_USER_AGENT] = Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36
Request.Params[HTTP_UPGRADE_INSECURE_REQUESTS] = 1