What can I do about this issue?

Sorry if this is in wrong section but didn’t know where else to start it…
So I finally decided to SIR to a university and it is asking whether my mother claims residence (which i put yes b/c she’s been living in ca for 18+ yrs)
Is she a citizen? (put no)
then here’s the issue: has she been awarded residency? She says no. So i cannot seem to put an ‘alien registration #’
However if i select ‘no’ to this question, it asks if she has applied to become one which she hasnt and she also has no type of visa…
I cannot skip this section and complete the rest until these questions have been answered !! ): I’m not sure what to do…
Is she a resident for tuition purposes? I am a CA resident, and both my parents have been living here basically all their lives. Advice? Help!

Why not call the college financial aid office and ask?