Facebook help?

[Gracie]

Okay so My moms a realtor and I work for her. What I do is I'm in charge of advertising her open houses ect... And she got her Facebook in 2008 and never really used it. She's never sent any friend requests, she's probably sent like 3-5 and they were all people she knew. She has about 36 friends. But now Im trying to friend people she wants me to from her office, but whenever I try to friend someone it says "your Facebook account is not able to make friend connections"
And I was reading on the help center that her Facebook could be blocked.
Can someone help me figure out what's wrong? Cause I need to advertise ASAP.