[MVC] Fatal Error for example plugin

Hi
I would like to try WP MVC, but i cannot even try the default example plugins.
After installing it crush WP backend with an error:

[MVC] Fatal Error: To associate posts with Venue, its table needs to have a column named “post_id” of type BIGINT(20). Please run the following SQL to add and index the column:
ALTER TABLE wp_venues ADD COLUMN post_id BIGINT(20);
ALTER TABLE wp_venues ADD INDEX (post_id);

Thrown on line 59 of …/wp-content/plugins/wp-mvc/core/models/mvc_model.php

Table was created, and that ALTER TABLE command will not run because #1060 – Duplicate column name ‘post_id’

So, not really promising start ?? any idea? I believed the db tables are created on plugin activation … the same error pop up on both examples.
Thanks in advance and have a nice day
Martin

https://www.ads-software.com/extend/plugins/wp-mvc/