Hey there,
I just installed the plugin and follwed the setup instructions to the point where I can connect via filezilla to my server. But if I want to upload some files, I get the following error
Status: Started upload of E:\Cliffford\images\background.png
Command: PASV
Response: 227 Entering Passive Mode (192,168,2,184,151,167).
Command: STOR background.png
Response: 550 background.png: Permission denied
Error: critical file transfer error