SSO not working – internal server error 500

Hello,

We are trying to use the NEXT active directory integration in combination with Woffice theme. We had authentication going with the previous version of your plugin and also now with the ‘Next’ version. However we don’t get the SSO option to work.

We can login with active directory credentials without using SSO but when selected and going to our wordpress homepage nothing happens. When i try to login i get forwarded to;

https://vogelsh18/wp-login.php?redirect_to=http%3A%2F%2Fvogelsh18%2F

But this ends up in a blank page. When not using the SSO option i get the login page and can get in with my active directory credentials.

But i would like to get things going automatically.