Error Log issues

Just purchased this app and it is posting an error log whenever I try to encode my mp3’s to any format. I chose the files to go to its original source folder and a small screens pop out asking me to Allow Write Access. I select the Allow Write Access option and I get another screen that tells me that I do not have any write access permission. I am using a Seagate external Goflex to store my music. The Seagate also contains the music that I want to encode. Please help. This is my second day trying to use this app with no luck. Any suggestions would be great.

Moriresvivir78 about Pro Audio Converter