[CLIENT] Unable to login to account on new client

I got updated to the new client and I'm now unable to login. I see the following error when I open the client: Username or password is incorrect. Please try logging in again. If you have forgotten your password click here. I'm unable to try logging in again, as soon as I click OK on the error the client closes and the click here link does not work. It's not a credential issue since I was already logged in and working for days. I'm unable to change credentials or any client settings.
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