Guild shown on my character

I left the guild almost 2 yrs ago, yet its still shown in my character profile. Its not shown in the Settings - guilds nor when I click in the top right in my characters guild/private logs window.
Any help?
I guess the character is claimed by the guild I left and theres no way for me to “unclaim it”.

( character name: Fidgett - Golemagg on Classic)