My Dish Network DVR box won't work (error 311/reference 0521)?

Yesterday the power went out on my street for about three minutes. I was watching TV at the time. When it came back on, and rebooted, the message popped up "As issue has been detected that may affect your ability to record or pause Live TV." It then says unplugging the box for one minute might fix it,... show more Yesterday the power went out on my street for about three minutes. I was watching TV at the time. When it came back on, and rebooted, the message popped up "As issue has been detected that may affect your ability to record or pause Live TV."

It then says unplugging the box for one minute might fix it, but I've tried. I still cannot record, pause, rewind, or acess my recordings.

The error number it shows is 311, the reference number it shows is 0521

I have a Dish Network ViP612 DVR

HELP
Update: I don't have a smart card. I have a slot for one, but no card.
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