BackitUp problems after change from ver. 6.6 -> 7

Hello freaks.

I’ve got a problem after upgrading from ver. 6.6 to 7.0, I’ve had som errors coming up on my screen.
I know that I have not deleted the BackitUp jobs from the old version 6.6.
Now I like to know, how can I get rid of the old BackitUp job files named as xxxxxxxxxxxx.nji?

I’m looking forward to your answers.

Best regards
Thom :confused: