I'm getting redirect issues on login page

Hi, I'm having redirect issues with my multisite. http://hendricksregionalhealthphysicians.org.

When I go to /wp-admin, it redirects me to wp-login.php with trailing
?redirect_to=http%3A%2F%2Fhendricksregionalhealthphysicians.org%2Fwp-admin%2F&reauth=1

Could you help me with this issue?

Thanks!