I think that was the one where she was unreachable by the government (this was still the covid times, 2021) which is a no-no and was seen as dancing with/maybe kissing another man (a celebrity) while her husband was at home with their daughter. (They separated some time after) That soured a lot of people's view on her. Of course her being a young woman was further incrimination to many of her opponents.
Another similar scandal was the house party video where she was allegedly doing coke. I don't think anything was proven there. Someone on the video was yelling "powder gang" which is weird but not exactly solid evidence, but it became a huge meme and just solidified her reputation as a "party girl", something beneath the position of a PM.
I think those were the bigger non-politics scandals.