Hi,

When I want to change the options for a newly generated table I get this error in the chrome console:

wpdatatables_edit_table.js?ver=4.7.4:486 Uncaught TypeError: Cannot read property 'error' of null
at Object.success (wpdatatables_edit_table.js?ver=4.7.4:486)
at i (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.4:2)
at Object.fireWith [as resolveWith] (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.4:2)
at y (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.4:4)
at XMLHttpRequest.c (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.4:4)

The js code here is:

$.ajax({
                    type: 'post',
                    url: ajaxurl,
                    data: data,
                    dataType: 'json',
                    success: function(response){
                        if(response.error) {

Turns out the response here is NULL

I did first try the free version of wpDataTables but wanted to use frontend editing. So I bought the plugin today.

Now I can add a new table defined in the wpDataTable Constructor, but afterwards not change them because of this error.

I've tried the following:

- removed all defined tables (just test data, nothing lost here)

- disabled all other plugins

- disabled the plugin and removed the wpdatatabe tables in phpMyAdmin and reactivated. Again I can create new tables bu not update them afterwards

This is on a local wamp installtion with the latest wordpress version

Hope you can help

Oh, some extra info. the wp-admin language is set to dutch

And it also happens when both plugin as website language is set to english

The error also happens when adding other types of datasources, the json table i created with the free version also fails in this registered one 

I activated the error log, and got this error:

[27-Apr-2017 18:32:58 UTC] PHP Notice:  Undefined index: wdtNonce in C:\wamp64\www\k3rk.nl\wp-content\plugins\wpdatatables\controllers\wdt_admin_ajax_actions.php on line 203

[27-Apr-2017 18:32:58 UTC] PHP Stack trace:

[27-Apr-2017 18:32:58 UTC] PHP   1. {main}() C:\wamp64\www\k3rk.nl\wp-admin\admin-ajax.php:0

[27-Apr-2017 18:32:58 UTC] PHP   2. do_action() C:\wamp64\www\k3rk.nl\wp-admin\admin-ajax.php:91

[27-Apr-2017 18:32:58 UTC] PHP   3. WP_Hook->do_action() C:\wamp64\www\k3rk.nl\wp-includes\plugin.php:453

[27-Apr-2017 18:32:58 UTC] PHP   4. WP_Hook->apply_filters() C:\wamp64\www\k3rk.nl\wp-includes\class-wp-hook.php:323

[27-Apr-2017 18:32:58 UTC] PHP   5. call_user_func_array:{C:\wamp64\www\k3rk.nl\wp-includes\class-wp-hook.php:298}() C:\wamp64\www\k3rk.nl\wp-includes\class-wp-hook.php:298

[27-Apr-2017 18:32:58 UTC] PHP   6. wdt_save_table() C:\wamp64\www\k3rk.nl\wp-includes\class-wp-hook.php:298

Solved the problem by using CTRL+F5 to clear the javascript caching, it was using the free version of the js, causing all kinds of trouble...