I just noticed that your "About" page is empty on Firefox, Chrome and Opera.
I wanted to find legal information there, as it is required by law in about every country I know the law of.
To not violate any of these, e.g. in the EU, you should fix this ASAP, especially since you are an effective E-Commerce since FAKKU! Books.
(I guess a link to the bottom of https://store.fakku.net/terms#conditions would suffice to meet the E-Com requ's)