Hi, I am very new to all things Zen so pls bear with me in my ignorance... I've read several posts about people moving their carts from lower level directories up to the site root, but I am attempting to move mine down - it was pre-installed for me in the top level, but since I just want to play around with it while I learn, I've moved it down a level into /shop/. Well I tried to follow the tutorial, and the home page has moved ok, and I can still log into admin, so 'back end' apparently looks ok. But if I try to click on any category on the home page I just get the error
"Not Found
The requested URL /index.php was not found on this server."

I can get to Site Map and Privacy Notice OK. (This is latest version of ZenCart btw.)

Obviously I have screwed something up but (though I'm not totally clueless) I don't know much PHP!!

Any suggestions very gratefully received
Thank you