Error while adding SP access in SP 2013 'no db server avail

Hi it looks like u don't have permition to create sp. plz contact to ur db admin. for more detail plz check link. https://docs.microsoft.com/en-us/sql/reporting-services/troubleshooting/troubleshoot-server-and-database-connection-problems-with-reporting-services?view=sql-server-ver15