Up to her old tricks again

Lazy Teenager has been out of the house since last April.  We did the "tough love" thing and made her move out because she wasn't going to school, didn't have a job, was stealing and lying. 

She found a friend of a friend to take pity on her.  She has been living with him ever since.

She never got a job.  He has been supporting her.

She did actually go back to finish high school.  She is only 1.5 credits short.  This is her schedule:

1st period: off

2nd: marketing

3rd: child development

4th: office assistant

So she only has 2 actual classes, and she doesn't have to be at school until 9:30.

Today I received, for the SECOND time since school started 11 days ago, a recorded attendance message that she was counted absent.

I would love it if someone could explain her to me because I just don't get it.