I am receiving this error, It occurred when I migrated my site to a different environment. which consists of a sql server and web front end(IIS server).
I installed the dnn and everything was ok. then I copied over the files into the newly created site and updated the config connection string to point to the database that migrated on to the sql server. (also note that I ensured that the users match that of the default database of nuke). once that is done I refreshed the site and I started getting this Error.
Could someone please help as this is very urgent. Thanks in advance.