Files in FILES folder don't display - what is wrong?
Not displayed the files that you have uploaded to the Files folder?
Make sure that the file name does not contain spaces - eg. "My photos". If yes, change the name to "My-photos".
Do not use accents.
If the problem continues - check the names of individual images - the same applies: in the name of the image can not be spaces (use a dash - or under strike _ ) and do not use accents or other characters like "'& @, etc..
Create a simple and concise names.