One Character Showing on Frostmourne in Realm Selection

I noticed on the realm list today that it showed me having one character on the Frostmourne server, but I haven't played on it in months and deleted the character long ago. I was just wondering why this is showing. I've tried creating and deleting new characters to fix it, and tried downloading a new client. I assume the data showing that I have one character on Frostmourne is coming from the Warmane servers as opposed to being on my local client.

It's not a big deal and isn't stopping me from playing or anything, it was just bothering my OCD and I'd prefer if the "(1)" wasn't showing on the realm list lol.

Here's a link to a screenshot showing what I am explaining.
https://imgur.com/a/Atl7YwE

Has anyone else noticed this before? Any solutions?