Thanks everyone. I truly think she's just overwhelmed as am I at the moment. I came back to the office and backed up her hard drive, as it's our server. In no way do I think she'd do anything to the files etc, but I can't be too careful. I've begun the process of putting out the word I'm looking for a part time receptionist/interpreter. We'll see what comes up.
Even if she calls tomorrow and wants to come back, I don't think I want her to stay beyond this week. She is making mistakes and is distracted and I understand, but I also can't have that in the office. We'll see what tomorrow brings.