Resolving 'Login Credential Not Allowed' Error on Windows Server 2022 After STIGs Polcy

After applying Security Technical Implementation Guides (STIGs) policy on my Windows Server 2022, I've encountered an error stating 'the login credential you're trying to use isn't allowed' and am unable to sign in, effectively locking me out. This seems related to the sign-in options specified by the policy, possibly due to restrictions on certain login methods. Has anyone faced a similar issue or can offer guidance on bypassing this to regain access for troubleshooting and policy adjustment?