The version of the SSISDB catalog schema ({0}) is lower than the server schema version expected by the SSIS runtime ({1}). ...

The version of the SSISDB catalog schema ({0}) is lower than the server schema version expected by the SSIS runtime ({1}). The server instance should be updated with the same cumulative updates as the SSIS runtime. The server reported that its build version is "{2}". The version of the SSIS runtime is "{3}".