getting error while integrating Azure OpenId connect

Hi, I am trying to inegrate Azure openId connect AD authentication, I am following the below links as reference. 

https://world.episerver.com/documentation/developer-guides/CMS/security/integrate-azure-ad-using-openid-connect/

https://we.knowit.fi/experience-fi/mixed-mode-authentication-with-azure-ad-and-aspnet-membership-for-episerver-multisites

I completed all mentioned points in above links, but now when I try to access the mysite/CMS section, I get below error on login page, any help please. thank you in Advance!