I hope that you guys can help When I try to upload a image to one of my products the box with the images turns red.
And won't upload..
You have a permissions issue on your media folder.
Your media folder should have permissions of 755.
In terminal, that command would look like:
chmod -R 755 media
I'm having the same issue. Although, can you direct me how to find the folder and make the necessary permission changes.