Ok, the prices are 0 for the sizes as it should be. If it is a shoe shop, than obviously you don't charge additional money for the shoe size.
When do you plan to fix it?
Also another problem which I can't understand:
On Latvian language all the "ul" letter combinations are highlighted.
For example, if you go to this category
goodsales.lv/lv/gultas-velja, you will see it. Also if you click on any product there, you will see it too. Please see here what I mean:
https://nimb.ws/l0Leim