Howard Miller

It's strange that you get no trace. You may have to find your PHP error log and look there. Without the trace, we can't see the source of the error which will make it very difficult to diagnose. What operating system / Linux distro (or whatever) is this - maybe we can tell you where to look for logs?

 

I've not heard of the LearnR theme but it should be fine - there's not supposed to be any breaking changes in minor point upgrades.

This could be as simple as your $CFG->wwwroot setting in your config.php being 'http' instead of 'https'.

"Broken pipe" implies a network issue of some sort. Without knowing more about the configuration of your server, it's hard to say anything else.

The first line doesn't seem to be a Moodle issue, and the second isn't an error at all - it's a redirect, which seems a little odd in this context

It seems a huge amount of effort when Moodle runs perfectly happily in a web browser

It's possible that cloud is different, but...

Site administration > General > Security > Site security settings > Force users to log in

 

Tick the box and save. 

 

If a not logged in user (i.e. a 'guest') attempts to access any page they will be redirected to the login page.