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Anonymous

#223301

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Trevor

#223314

Ah. I do not know why I did not see the issue before. I am blind, I apologize. The form UI itself is incorrectly built. When fixed, we may have to come back to the Display Method, which I think might not work.

Fortunately, you have made only two posts, so to fix the issue is not so much work.

You have used ‘Category’ six times in the form, but you can use each source or data terms only once per form, and one form per page.

For many reasons, the best solution is not to use Categories at all, but instead have one Custom Field per form field. I would suggest that you install the Advanced Custom Fields plugin (it is free and very popular) and create a Field group for Posts, with six Custom Fields in. Think carefully about what type of fields you want whoever is entering the data to use, like checkbox, select box, number etc.

Then edit those two posts and fill in the data. Then edit the form to remove the Category fields and add Post meta fields, one for each of the 6 different custom fields. Make sure, when you select the field (meta key) name to use in the Post meta field object in our form, that the name does NOT start with an underscore.

I suggest using ACF also because there is a good front end form system for it, so data entry could be done by an editor from outside the admin, if you wanted. Also, most data import tools support ACF.

Anonymous

#223745

Hi, I think that will be too complicated for the user to input, so I have changed to just a general checkbox filter in the sidebar. However I still get the same error. I have unchecked use Ajax so not sure why it isn’t producing results.

Trevor

#223964

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Anonymous

#224095

Yes I can’t find much information on this error. Are you able to help?

Trevor

#224113

Not a lot, as it is not one I have personally encountered. What I would do though …

Make sure WP Debug mode is ON. See if that gives any further information.

#1 Install a standard WP theme, like TwentySixteeen or TwentyFourteen (my favorite two stable test themes) and activate that. Test the form. Does the problem persist?
#2 Deactivate all other plugins. Test the form. Does the problem persist?
#3 Make a dev site on the same server and install WordPress from scratch etc. Test the form. Does the problem persist?
#4 Make a dev site on a different server (different specs, different host). Test the form. Does the problem persist?

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