If I understand correctly, you have the problem that you cannot currently manage pages or events with the Classic Editor. Is that correct? What exactly happens when you use the editor? Does the page not open at all, does it give an error message, does it not save?
And which plugin do you use to activate the Classic Editor?
Please note that we can only talk about the pages here. Unfortunately, I don’t know which calendar plugin you are using.
We use the classic editor that I believe comes with WordPress. I can open and edit a page and/or an event in the calendar. But when I save it, the edits are going. No error message
That is strange. Nevertheless the following tips:
- Look under Tools > Site Health to see if there are any anomalies.
- Check the error.log of the hosting to see if any errors are logged there.
- Deactivate all plugins except Classic Editor and see if it works. If so, one of the plugins was to blame.
Some background: the classic editor is part of the WordPress core. For some years now, however, the block editor has been set as the default for the user. To activate the classic editor, you have to use the plugin you are using or a theme or other plugin that executes the PHP hook required to deactivate the block editor. Your problem probably has less to do with the editor and more to do with saving data, hence the tips above.