Howard Miller

A couple of observations...

- this plugin is not "official" so I don't know where the limits came from. That doesn't make them wrong but probably shouldn't be taken as absolute advice

- slow file performance often points to shared / networked file storage. Unless you have something expensive, this often just is slow. Does this sound like your setup

- I get very boring about this, but caching in Moodle is critical. If you have done nothing and your file storage is slow then that might not be THE problem, but it's certainly A problem. The easiest remedy is to go and get yourselves a Redis server and point the cache/MUC at that for all defaults. In fact, do that anyway.

 

(and, as previously pointed out, please avoid starting new thread for what - on the face of it - is probably the same issue)

The only thing I could see is that (in 4.5 anyway) there doesn't appear to be a parameter called 'confirmed'

 

Also, does the custom field 'tc' actually exist (I assume it's going to be an error if it does not)?

Indeed - had the developer of the extension documented that it could return multiple types...

Switch on Debugging right up to Developer level. You'll probably need to do this in the config.php file.

Then recreate the problem and you will (hopefully) see the error trace rather than a blank page.

It sounds like Moodle is trying to upgrade something but it's going wrong. Did you (try to) install an optional plugin recently?