The most famous alleged feud is during the filming of Code Blue where she supposedly said many mean things about her co-star, Aragaki Yui.
When the offer came for a new Liar Game movie, Shota said he doesn’t want to film it with her. Maybe that’s why they changed the main actress to Tabe Mikako?
Source: 1, 2
I'd like to see Erika in Liar Game again though..