Publish error

I am a beginner and just publish an App in studio.  I click the app link but it shows an empty page with error message “502 bad gateway”.   I open my app in studio pro. there are 28 error messages:  The selected layout ‘Atlas_UI_Resource.Atlas_Default’ no longer exists.  all the errors point to Module MendixSSO.  Need help to fix the problem. Thanks! Hong  
1 answers

Its a version compatibility issue. You must have downloaded an older version of Mendix SSO.  Download the latest version of Mendix SSO  from the Marketplace and let it  overwrite the existing Mendix SSO. Choose the  Mendix SSO in the dropdown “Module to Replace”