Guild Wars 2

I merged my Guild Wars 1 and Guild Wars 2 account a couple weeks ago when I bought Guild Wars 2 early access. Just today I thought I’d login to Guild Wars 1 just for fun since I haven’t been on for a long time.. but I’m getting an error I’ve never gotten before. It says: “We don’t recognize your account login information. Please try again. (Code=227)”
I know for a fact all my login information is correct. It’s the merged account I use for Guild Wars 2, and it lets me login there. My character on the account is correct too cause its my main I’ve had for 3 years. Can someone help??

I also support this !! ^_