Can't change email

I had 2 MuseScore accounts. This one, with a Google login, and the account The_funiii, with an email login. I merged them, but then realized I cant change my email because you have to enter a password, and this account doesn't have one. Also, before I learned you need your current password to change your email or password, I tried changing my email, and it said that the email was still taken. I checked, and the email account was successfully merged, as it's page is nonexistent.