Please use one topic for only one question.
Try to add this code:
remove_action( 'woocommerce_archive_description', 'woocommerce_taxonomy_archive_description', 10 ); add_action( 'woocommerce_after_shop_loop', 'woocommerce_taxonomy_archive_description', 100 );
to the irepair\pixinit\woo.php
