I removed that themes if you think its a theme issue.
I will waste my time on their forum also thanks.
(but as I said, I faced same issue when I was not using this theme or not even woocommerce, I was setting up eCommerce website with other things then also i faced this)
Theme is mystyle woocommerce theme
and I have faced same issue where I am not using this theme.
and everyone else can view my website in full working condition so surely it is not a theme issue