Help me contact Erza

[D1.]

Erza has disabled their account so I cannot PM them or write on their profile page.
Their discord has lots of privacy settings so you cannot send friend requests to him, he can only send them to you.

The reason I need to contact him is because he negged me, and to get it removed BucketOfSloths said

“Open a reputation dispute to them” which I cannot due to not knowing how to contact them.

Whoever finds them will be a legend! Thanks in advance.