Howard Miller

I'm struggling here. I've not seen that before.

This is going wrong in the code that verifies XML files that define the database tables. The only thing I can think is that something went wrong copying the files to your hosted server. Files are corrupt or missing. That's where I would start.

 

Somebody else may be along with a more inspired explanation.

You've not given us much to work with

So, you go to the URL where you expect to see Moodle and what (exactly) happens?

What changed? Something did. Even if you don't think it's related. Has anything been updated (did you ignore any emails from the hosting company etc.)

 

It's nothing to do with registering Moodle.

How many attempts did the quiz have? Quizzes can consume surprising amounts of data. It may not be the quiz itself, it could be deleting the associated data.

As an aside to this, if you have the recycle bin in operation, that also means copying the data to the bin will be a lengthly process.

No idea, but where did your PHP build come from? If it's not from a "reliable" source then there may be something wrong with the MySQL extension.

It's not finding the file PEAR5.php. It certainly should be there, in the directory lib/pear/. (https://github.com/moodle/moodle/tree/MOODLE_404_STABLE/lib/pear)

The first step is to check that the file exists. It's possible that something went wrong copying files into place. If it is, then check the permissions allow the web server / PHP to read the file.