I moved my laytheme website to a new domain: bettyfink.de and everything worked out.
I tried to upload new images, but I'm only seeing an empty box in the Upload-Window (it doesn't matter if it's being uploaded through +caroussel or +image) and they are not showing in the gridder.
The previously uploaded images are working.
I'm not sure where to start troubleshooting.
Thanks a lot!