Error displayed when using custom post type

Hi,

I’ve got an error displayed on the page when using the plugin with a custom post type:

Notice: Undefined index: include_cat_ in /XXX/wp-content/plugins/post-carousel-for-dv-builder/includes/postcarousel.php on line 897

I first thought it was linked to the fact that i used a custom post type which didn’t have any taxonomy.
But after adding one and setting the same one to all custom posts, I selected the taxonomy in my carousel’s options, but I still get the error.

The carousel is functionnal though, so I think it’s just a missing control of something like that to avoid getting the error.

I made a quick fix:

$include_categories = (! empty ($this->props['include_cat _'. $selected_tax]))? $this->props['include_cat _'. $selected_tax]: null;

but I don’t know if it can cause any side error so I let you investigate it anyt further