User profile page is not found (404) - emails not showing

Well, because I cannot click her name, I can only search her up in the admin - users interface - from there, I can see that her avatar is indeed wrong (the silhouette). The admin page doesn’t look particularly weird apart from that.

She’s trust level 3 - regular.

The account is about 4 years old, so not new - she’s a very active user with tons of posts. It’s a pretty recent thing, because she’s also been pretty active in personal messages. Of course you can’t send her anything anymore, because of this.

She can still use the site, like read and reply. The system even sends her emails.