In a statement shared with The Daily Telegraph, Marais’ management said the star is “naturally disappointed.”
“It is with much disappointment that we advise Jessica Marais is unable to attend the TV Week Logie Awards due to her health.”
“Jess is naturally disappointed, is grateful to TV Week and all the viewers who have nominated her for the Awards this year and wishes all the nominees and her friends a great celebration on Sunday night.”
The statement ends with a request for privacy.
Marais has spoken publicly about her experience with bipolar disorder before; in 2014, she shared that she was diagnosed at the age of 12 and that her family has a history of the condition.
Marais has a six-year-old daughter, Scout, with her ex-partner and Packed to the Rafters co-star James Stewart.