Hello @rowanj
So what is the URL of the feed? could you share that with us?
What do you see in the feed editor? Is the feed active?
Have you tried the following?
1. Deactivate and then activate the plugin. Test the issue again.
2. If that does not resolve the issue, deactivate and reinstall the plugin over the current installation. Then activate it again and test the issue.
3. If it still does not work, remove the plugin through the plugins page (be aware, this will also delete all existing feeds) and reinstall it. Then test the issue again.
4. If Feeds freeze when you create them in the manager, see if you have enough memory limit 256MB at least and more for bigger shops.
5. Open the Console tab of your browser (see below on how to do that) and check if you get any error message in the console whilst generating the feed. If you see any error message there, make a screenshot and send that to me.
6. If you don’t see any error message on your Console Tab, look for any error log file in the ‘wp-content/plugins/wp-product-feed-manager’ folder and in the ‘wp-content’ folder or in the root folder of your web server. If you find any error log file send that to me.
7. If you can’t find an error log file, try to put your wp-admin account in debug mode (see below on how to do that) and repeat steps 3 and 8.
8. Let me know if all the steps above did not help
To open the Browser Console Tab press, depending on your preferred browser: CNTRL+SHFT+J (for Chrome) CNTR+SHFT+K (for Firefox), or F12 (for Explorer). If you work on a Mac: (CMD+OPT+J for Chrome or CMD+OPT+K for Firefox).