Reports configuration manager Error

If I have uninstalled and reinstalling the reports ,in reports configuration manager it showing error
when I have uninstalled and reinstalling the reports ,in reports configuration manager it showing error

Solutions:

1.delete the ReportServer database from SQL server or name the database name different from the old one

2.drop the reportserver db in server put the snapshot of the error after adding the new DB name in rs config or Do not create new report server. Select the 2nd option of configuring existing database and select Reporting server as the database