scheduled task

I created several tasks on my nas such as running smart test once a month etc. Somehow I created once to backup my NAS's configuration file but for some reason the log reports it as failed. Trouble is I can't find the sucker to see why it's failing other than the log shows the connection...

Clicking through the Storage Manager this morning and noticed that the Data Scrubbing task has not been run for over a year (I know, I should pay more attention). I've triggered a manual scrub for now and the NAS is working through that task but I am still puzzled as to why the 'Last run' date...