No bug detected - weird!

[GET:]
500;http://andelsbolig-online.dk:80/detaljer.asp?id = 1094802


[POST:]


[Server:]
ALL_HTTP = HTTP_CONTENT_LENGTH:0
HTTP_ACCEPT:*/*
HTTP_ACCEPT_ENCODING:gzip, br, zstd, deflate
HTTP_HOST:andelsbolig-online.dk
HTTP_USER_AGENT:Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ALL_RAW = Content-Length: 0
Accept: */*
Accept-Encoding: gzip, br, zstd, deflate
Host: andelsbolig-online.dk
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

APPL_MD_PATH = /LM/W3SVC/10/ROOT
APPL_PHYSICAL_PATH = D:\websites\andelsbolig-online.dk\www\
AUTH_PASSWORD = 
AUTH_TYPE = 
AUTH_USER = 
CERT_COOKIE = 
CERT_FLAGS = 
CERT_ISSUER = 
CERT_KEYSIZE = 
CERT_SECRETKEYSIZE = 
CERT_SERIALNUMBER = 
CERT_SERVER_ISSUER = 
CERT_SERVER_SUBJECT = 
CERT_SUBJECT = 
CONTENT_LENGTH = 0
CONTENT_TYPE = 
GATEWAY_INTERFACE = CGI/1.1
HTTPS = off
HTTPS_KEYSIZE = 
HTTPS_SECRETKEYSIZE = 
HTTPS_SERVER_ISSUER = 
HTTPS_SERVER_SUBJECT = 
INSTANCE_ID = 10
INSTANCE_META_PATH = /LM/W3SVC/10
LOCAL_ADDR = 172.20.76.2
LOGON_USER = 
PATH_INFO = /global/500.asp
PATH_TRANSLATED = D:\websites\andelsbolig-online.dk\www\global\500.asp
QUERY_STRING = 500;http://andelsbolig-online.dk:80/detaljer.asp?id=1094802
REMOTE_ADDR = 3.143.24.110
REMOTE_HOST = 3.143.24.110
REMOTE_USER = 
REQUEST_METHOD = GET
SCRIPT_NAME = /global/500.asp
SERVER_NAME = andelsbolig-online.dk
SERVER_PORT = 80
SERVER_PORT_SECURE = 0
SERVER_PROTOCOL = HTTP/1.1
SERVER_SOFTWARE = Microsoft-IIS/10.0
URL = /global/500.asp
HTTP_CONTENT_LENGTH = 0
HTTP_ACCEPT = */*
HTTP_ACCEPT_ENCODING = gzip, br, zstd, deflate
HTTP_HOST = andelsbolig-online.dk
HTTP_USER_AGENT = Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)