Sadly a standard case of a artist deleting all their stuff, this was all I could find online.

Socials from Danbooru, technically first Pixiv isn't deleted, it just has all it's posts removed.

https://www.pixiv.net/users/34882595
https://www.pixiv.net/stacc/user_ehxc2788
https://twitter.com/wadoru237
https://twitter.com/wadoru327
https://twitter.com/intent/user?user_id=830341374545321985
https://twitter.com/intent/user?user_id=1008318107474018305
https://sketch.pixiv.net/@user_ehxc2788

As usual if there's any images I missed or if they actually have a still active social I missed, let me know.