Error: ‘The default Report Server Configuration ID could not be found in the SRSServers table.’
1. Config reporting service.
System administration> Setup> Business intelligence> Reporting services> Report servers>
change server name to <YourServerName>(here SystemName) as well as ensure that your Report Manager URL, Web service URL and Application Object Server information reflect this server as highlighted on the screenshot.
Then validate it as well make it default configuration
2. Deploy all the reports.
AOT> SSRS reports> Reports> find your report> right click> Deploy element
Then it works good.