Hey Denis,
please visit the “Appearance – Editor” admin section, choose the “Theme functions (functions.php” template on the right, find line 790 which says:
include_once( get_template_directory(). '/includes/seo/seo.php' );
and replace it with:
// include_once( get_template_directory(). '/includes/seo/seo.php' );
Save the changes in the code and the bundled SEO plugin will get deactivated.
Sincerely,
Andrii / Satori Studio