I’m running WP 4.5.2 with some Widgets using PageBuilder. After I’ve updated the plugin to last version 2.4.9, my widgets stopped working.
The PHP error is:
Notice: Undefined index: mywidget_widget-4761001 in X:\xampp\htdocs\WP\public\wp-includes\widgets.php on line 809
The following line is in the is_active_widget function:
if ( !$widget_id || $widget_id == $wp_registered_widgets[$widget]['id'] )
My widget has been using this function (is_active_widget), it was working before the plugin was updated.
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