Can´t play (watch) recorded programs.

I set the timer to record a program. When it has recorded the program an I want to watch it it turns it self off directly. In the indexwindow a small blue circel whit a c in it. is showing.
I have been able to record programs with the timer succesfully for a couple of years and now this problem suddenly appears.

When I set the timer a small lock is showing in the top left side. I have tried to find out if there is some kind of childlock but it doesn´t seem to be like that.

Really greatful for a solution :-)
Harriet