Of course, happy to provide further info.
No, the message did not clear after a refresh of the page or with time.
I am using the latest version of Chrome on a Windows 10 system (up to date, as just rebuilt the computer). It is running on an i7 processor with 8GB of RAM, a 1TB SSD and a 65Mbs internet connection (though lower once to the desktop).
Hope this helps.
On our own install we have Moodle 3.9 running on a virtual server behind a proxy, with a secure HTTP external connection. The server is compatible with Moodle up to 3.10 (probably beyond). CodeRunner is on the latest version (all plugins are up to date).
I could get more specific details on the server if required, but would take me a little time.
Oh, it is a Debian Linux server. I know we are around 38% on drive space.
Many thanks for that, Gary. Very helpful. Your machine sounds top-of-the-line so the problem can't be its performance. Just to confirm though: you are getting the message with that machine when running a quiz on this machine (coderunner.org.nz), even when you refresh the page? Because that's very strange indeed.
I could possibly come up with theories that would explain the problems on your own server but I'd first like to understand how problems can occur on our server.
I suggest we take this conversation off-line until we've found a solution. I'm going to email your directly.
Thanks for helping out
Richard