Plugin is affecting screen-design

After acativation of the plugin, the product images in a woocommerce shop aren’t centered anymore. How can I fix this by using this plugin too?

Liveshop – the product-image isn’t centered after click on the image:
http://alpensepp.com/kaeseshop/kaese-box-wuerzig-testpaket

Testing area with deactivated plugin:
http://gourmet.alpensepp.at/kaeseshop/kaese-box-mild-testpaket

Any idea how I can fix this lightbox-issue?

https://wordpress.org/plugins/google-language-translator/