Hi Chayce
If that account did not previously have an Email address associated with the account, that must have a local user account, try switching back yo a local account
Open the Settings App
Go to Accounts - Sign-in Options
Choose to sign in with a local account
(in newer versions of Windows 10, this might be on the Your Info Settings Page)
Enter your old password and enter a new password if required, or leave the new password box blank
Close the Settings App