Problem: Your online eShop and shop preview only shows up a blank page with a few words in it.
Solution: The cause of the problem is that you may have setup some plain
text under eShop -> Advanced settings -> Text modules 1 -> Global texts for all shop pages
HEAD of the index.shopscript page and HEAD for all shop pages
These sections should only contain meta tags or css style sheet. Check FAQs: Global texts for all shop pagesWhere should meta data be included?