The former headmaster of Oprah Winfrey's South African Leadership Academy for Girls, filed a defamation lawsuit against the TV star in Philadelphia court Friday, according to People magazine.

Nomvuyo Mzamane claims she had nothing to do with the allegations that are still unfolding in criminal court in South Africa. Mzamane says she suffers from "depression, anxiety and insomnia," and her professional reputation has been ruined as a result of the allegations.

Court documents in the civil suit say Winfrey "launched what amounted to a defamatory campaign" against Mzamane late last year by implying in comments to the media that Mzamane is "untrustworthy, failed the students of the academy, did not care about the students at the academy, knew of alleged physical and sexual abuse at the academy and participated in a cover-up of the alleged abuse."
Mzamane, 39, also filed a defamation suit against the blog the Huffington Post.

Mzamane has said there was no cover-up at the school and she knew nothing about the allegations.

Since her termination, Mzamane has not been able to find comparable work and suffers from "depression, anxiety and insomnia," the suit states. She is asking for $50,000 for each of five different claims, according to People.

Meanwhile, the trial for Tiny Virginia Makopo will continue Oct. 22 in South Africa. The 28-year-old woman is accused of indecently assaulting and abusing six teenagers at Oprah Winfrey's school for poor South African girls.