Batch Create Plugin 1.2.3 and 1.3.3. "Error uploading the file."

I had a copy of Batch Create 1.2.3 and when I went to use the plugin earlier tonight it gave me an error when I attempted to upload a file. I wasn’t sure why I was having this problem, the plugin had been working a few months ago when I last used it but I did upgrade WordPress to 3.7.1 since then so I thought I might need to upgrade the Plugin. I just purchased the latest version of Batch Create version 1.3.3 and tried again but I’m getting the same error “Error uploading the file.” Does Batch Create need FTP to be installed and running on the server? Do I need to change the owner of the plugin directory?