Thanks for your reply. I’m not running caching plugins or software but I am running Cloudflare. However I believe this only caches static resources.
When a newly registered user tries to post they get this error:
ERROR: Your topic cannot be created at this time.
Nothing is shown in the logs.
I will do the usual testing of disabling plugins and using a standard theme. But do you have any idea how to debug this and track down where this error message is generated?
We do have a long list of moderated words which I suppose may be causing the issue.