Create a new user and add a new password to it but make sure you give the new user admin privileges here watch this it should point you in the right direction.
How To Create New User and Personal Email On Website

Yes I think that my problem may be a setting on the plugin that I put on my site. I cannot log in either....

I can't get into my website admin. I cannot build my website. I've been trying for a week and I'm very frustrated

windchimesbytedd.siterubix.com

when I enter windchimesbytedd.siterubix.com/wp-admin

I get a blank screen

help

I agree with Tommo, I had the same problem and submitted a support ticket and they told me that the cause was a plugin, maybe they can help you to resolve your issue

if its hosted here ask support to unlock it for you. "create a support ticket"

A sub domain is an extended name of your main domain and a site that can stand by itself. You can have a sub domain if you want it to have a connection to your main domain. For a more complete explanation type in sub domain under the question box. I don't know how to get the link to it.