Recently, I had a task for restoring the Reporting Services database from a live environment to a test environment.
Right after the successful restore, I tried opening the Report Manager website and I was presented with the error "The report server installation is not initialized. (rsReportServerNotActivated)"
This is because of the mismatch in the encryption key.
To fix this, either restore the encryption key from the live environment or delete the encryption key from the restored reporting services database.
The restoration or deletion of encryption key can be done by using the Reporting Services Configuration Manager.
Right after the successful restore, I tried opening the Report Manager website and I was presented with the error "The report server installation is not initialized. (rsReportServerNotActivated)"
To fix this, either restore the encryption key from the live environment or delete the encryption key from the restored reporting services database.
The restoration or deletion of encryption key can be done by using the Reporting Services Configuration Manager.