Hi Atgdax,
I have a few question additional:
Could You tell me what version PHP do You have?
What theme and what version WP do You use ?
Could You paste link to your shop?
You can translate the plugin by Loco Translate: https://wordpress.org/plugins/loco-translate/
I do not understand what you mean by: “in ruls and standard”, can you explain what you mean?
If you want to edit style just edit your theme’s CSS. The CSS class applied to the plugin text is: “.total-weight”. You can find the code using Firebug for example.
