server-status | Command line tool | Monitoring library

You're using XML namespaces in XPath correctly.

However, your original XPath,

The subcommand() method consumes the app and returns a new one. This nicely supports chaining, but requires your configure function to also accept an object, and also to return one:

You can use SetEnvIf:

Thank you Ryszard Czech as your answer ( comment) worked ( I initially put the code in the wrong place)

Replaced the code to this and it worked like a charm.

You can see that the path to httpd is hardcoded to the relative path ./httpd in apachectl:

I found the answer:

php must be compiled with mbstring support

for php7.4 that's the --enable-mbstring option in configure.

The data from that script is not persisted, so there would need to be a mechanism to schedule it to run periodically, and persist the data. You could alter the script, or you upgrade to a more recent release and use Request Monitoring.

The process to enable Request Monitoring is in the documentation, and once it's enabled, the requests will be logged in the app server RequestMonitoring log.

As Eelke mentioned in comments, the issue was lack of network reliability. A connection (established via vbs in this case) that is interrupted/broken due a network outage can cause this type of error in a program (vbscript in this case) but not produce any immediate server-side errors:

"server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request."

Solution: make the network more reliable

Try this