Unexpected error

Hello.

This error occurs in the code of your snippet.

I don’t use property post_type in my snippets. Maybe it is a conflict with the theme…

Are you using the latest version of the plugin?
Can you show in the screenshot what you have in this file on line 80?

In line 80 I have this line:
$post_type = ! empty( $post ) ? $post->post_type : get_post( $data->ID )->post_type;

I don’t use the last version of the plugin and I cannot update because I use a version with my own customizations and I have done this post in order to help you.

I love your plugin and it would be my pleasure to contribute =D

We cannot support a customized version of the plugin for you. You’ll have to figure it out yourself.

In line 80 I have this line:
$post_type = ! empty( $post ) ? $post->post_type : get_post( $data->ID )->post_type;

The problem in this line was that $post could be an integer=post_id, so the so simple fix is this:
$post_type = ! empty( $post ) && is_object($post) ? $post->post_type : get_post( $data->ID )->post_type;