I did try it with the early release, but I got the same Error under the url
Here’s a screenshot of what it looks like:
If I click the link it just redirects me to the Export Page of the plugin without creating the actual export. Are there any plugins which interfere with Store Exporter?
I deactivated all the plugins on the site except Store Exporter Deluxe and then exporting worked. It seems Store Exporter Deluxe interferes with this Plugin https://wordpress.org/plugins/pta-volunteer-sign-up-sheets/
Any chance you could figure out what’s the problem?