SCOM 2019, SSRS 2016- with event id 31567 is OPS Mgr log. I find plenty of references for SSRS2017 but none for fixing the issue with SSRS 2016.
Data Warehouse failed to deploy reports for a management pack to SQL Reporting Services Server. Failed to deploy reporting component to the SQL Server Reporting Services server. The operation will be retried.
Exception 'DeploymentException': Failed to deploy reports for management pack with version dependent id 'd62b23ec-5c08-1591-aee2-a800b167732c'. Failed to deploy report 'SystemCenter.Operations.Manager.Health.Check.Report.Library.Report.Misc.OMSManaged'. AdjustDataSources: Exception <ErrorCode xmlns="http://www.microsoft.com/sql/reportingservices">rsInvalidParameter</ErrorCode><HttpStatus xmlns="http://www.microsoft.com/sql/reportingservices">400</HttpStatus><Message xmlns="http://www.microsoft.com/sql/reportingservices">The value of parameter 'DataSources' is not valid.</Message><HelpLink xmlns="http://www.microsoft.com/sql/reportingservices">https://go.microsoft.com/fwlink/?LinkId=20476&EvtSrc=Microsoft.ReportingServices.Diagnostics.Utilities.ErrorStrings&EvtID=rsInvalidParameter&ProdName=Microsoft%20SQL%20Server%20Reporting%20Services&ProdVer=13.0.4259.0</HelpLink><ProductName xmlns="http://www.microsoft.com/sql/reportingservices">Microsoft SQL Server Reporting Services</ProductName><ProductVersion xmlns="http://www.microsoft.com/sql/reportingservices">13.0.4259.0</ProductVersion><ProductLocaleId xmlns="http://www.microsoft.com/sql/reportingservices">127</ProductLocaleId><OperatingSystem xmlns="http://www.microsoft.com/sql/reportingservices">OsIndependent</OperatingSystem><CountryLocaleId xmlns="http://www.microsoft.com/sql/reportingservices">1033</CountryLocaleId><MoreInformation xmlns="http://www.microsoft.com/sql/reportingservices"><Source>ReportingServicesLibrary</Source><Message msrs:ErrorCode="rsInvalidParameter" msrs:HelpLink="https://go.microsoft.com/fwlink/?LinkId=20476&EvtSrc=Microsoft.ReportingServices.Diagnostics.Utilities.ErrorStrings&EvtID=rsInvalidParameter&ProdName=Microsoft%20SQL%20Server%20Reporting%20Services&ProdVer=13.0.4259.0" xmlns:msrs="http://www.microsoft.com/sql/reportingservices">The value of parameter 'DataSources' is not valid.</Message></MoreInformation><Warnings xmlns="http://www.microsoft.com/sql/reportingservices" />