Did you save your avatar after clicking that button?
try switching the skin to another (if you have one unlocked) & then save it. Then refresh your wardrobe & try the HERE option- it will turn into the I cursor. Try pressing it then saving again and refreshing again...should remove it.
I recently came back from hiatus as well. I had to get my skin cured at the Healer for it to go away, so maybe that will work for you if Ichigo777's suggestion doesn't?
curing a skin is still possible? If you haven't saved this Skin in your library of Skins, you lose the ability to put it back on if you want to.
Try filing a ticket to get it removed and added to your wardrobe.
Yeah, I second Skolletta's suggestion, I'd hate for you to lose access to the skin if something went wrong.
Well, it was for me. At least, I think that's what ended up working in the end. I was gone a whole two years, so since before skins became unlockable in the wardrobe. I did file a ticket about unlocking it, but they told me it had been too long for them to unlock the skin for me.