The login page of the web application works. However I now get the following error after every login attempt:
There is currently no access to the application definition using the configured settings. Please contact your application manager.
This happens both with Windows domain user accounts and SQL Server accounts.
I don't understand the reason for this error. The ini file hasn't been changed and still contains the right settings for the database server and the database name. Users have write access to the web folder. I followed the deployment guidelines.
What could be the cause of this error? It has worked before this change to a multi site setup.