Unfortunately this particular file modification which I guess has resulted in this message is a bit of a result of previous work that has been done to specifically support login to the admin for this ZC user at this host.

Last related action that was posted as necessary was finding another way to set the timezone because the php command putenv has been disabled by the host in the shared environment used at this site. Whether the solution is to add a command to an .htaccess or if it is possible to have/generate a php.ini file or not is to be seen. Oh and the issue may have been posted by a user with a very similarly spelt name because for some reason this user had to create a new account and continue the discussion but appears to be back now in this username.

There is still some debate about whether such a warning is the true cause of system non-response, but that issue is the last of things that appeared necessary in order to support continued operation...