家にいる。

[hqyang]

translation is wrong

[MsFixer]

@hqyang
The author from the sentence source isn’t a Japanese native speaker…

彼女は家にいる。（かのじょはいえにいる）

is the correct translation.

家にいる could mean either:

I/we/he/she is home.

I/we/he/she will be home.