Why won't my cart update for certain products?

[xgregorr]

hello. i have store with 3 product and i have this weird problem. when i click add to cart i dont get notification that it has been added and my cart wont update until i refresh page. this problem happens only with 2 specific products. i tried to use new theme but my problem is still there:/ anyone help please? you can check it out too : thepawlover.store

[JAMES2876]

oh so sorry about that, but i can suggest some idea on how to go about that