I downloaded the lastest version of WP Photo Album Plus. All seems to work fine. I can create albums and upload images. The only problem is that the plugin does not create thumbnails. I checked the folder wppa and wppa/thumbs. The full size photo is uploaded, but there is no photo in the thunbs folder. The thumbs folder is CHMOD 755. I even tried CHMOD 777, but this also doesn't work. After I uploaded the photo I get a blank page. I do not return to the upload page.
What can I do to solve this problem?
Thanks for your help!