That would be surprising if she was the problem, since she's been in the game since the start of the game development, when Mofu-san created and published the Itch page/demo and it never was an issue. Whatever the case, I'm glad to see the page was restored!
Viewing post in Regarding this page being "not found". comments
Yeah, I'm not sure either. I think someone had just used the Patreon page (which was also falsely reported) as evidence to get the game pulled from Itch. Then they lied on pixivfanbox and said the game got pulled due to copyrights issue with certain characters (which also wasn't the case). You can see the evidence here from the Fanbox comments page (by this point, they changed their name from 16may61 to 1661 before they were banned from Pixiv, due to constant harassment on Mofu-san comments section).
This person was also the one who maliciously forced Mofu to make a Patreon page and banned them from continuing their Subscribestar page, knowing it's easier to falsely flag something to get the Patreon page pulled, which could then be used as ammo to get the game banned here. Evidence here:
Just glad the misunderstanding is cleared and the page is back.
Sorry that you have to deal with such a crazy fan/stalker like Lipstor/16may61 or whatever their name is now. Hopefully they'll drop this harassment and move on, cause at this point it's getting ridiculous and embarrassing. They don't seem to understand the concept of copyrights laws, cause they think just having an idea means they're the creator and everyone is forbidden without permission to use it, like making a Subscribestar/Patreon page, which is something all artist use to get monetisation for their work. I hope they get some help, cause it's very unhealthy behaviour and they're acting very unhinged and delusional.