weeix on "Duplicate column name 'wsi_close_on_esc_function'"

Hi,

I found a lot of these entries in my apache's error.log:

[Thu Jul 28 10:19:09.222952 2016] [:error] [pid XXXXX] [client XXX.XXX.XXX.XXX:XXXXX] WordPress database error Duplicate column name 'wsi_close_on_esc_function' for query ALTER TABLE wp_wsi_splashimage ADD COLUMN wsi_close_on_esc_function BOOLEAN NULL; made by require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('plugins_loaded'), WsiBack->update_db_check, MainManager->wsi_install_db, referer: https://mysite.com/wp-admin/post.php?post=1103&action=edit

Why does the plugin have to alter a table when someone is editing a post?

Thank you

https://wordpress.org/plugins/wsi/