SFTP Voyager Scheduler Script Error

I have created a Task in Scheduler and have tried executing this task however nothing happens. Typically directly following executing a task manually I click on the Schedular Log tab. When I do this I'm immediately presented with a pop-up window indicating a script Error. See image

I then check to see if the log file has any additional information. BUT no log file gets created and no files are sent. I am running the FTP scheduler service under a system account that has administrative rights. I've also made sure that I can connect to my SFTP server and that I can successfully manually upload files, it's all good. Lastly, I've made sure that I have the most recent version of Java running on Server 2012 R2.

Any help would be much appreciated.

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