WP Photo Album Plus Upload Issues

Im actually having exactly the same problem as mentioned in a similar topic; unfortunately, not the same solution. When I try to import photos from the specified source directory I will just get a message that says:

“Resized or copied image could not be created”

All of the folders were created fine. I have wp-content/uploads/wppa/thumbs. And their permissions are all set to 777. I put a folder of photos into the uploads folder via FTP and the plugin sees them and everything, but its not successfully importing them like I mentioned above.

I made sure the “Resize and Upload” option is on. What’s weird though is that despite the error, after importing a group of images, if I check my site and refresh, the images will be there. However, as soon as I attempt to add another group of images to a separate album, the previous group is removed. It says:database fixed. Invalid entries removed.

What am I missing? It seems like a great plugin and I would love for it work.
Thanks in advance!

~Nick