IFS External Report Gateway - Error in the last API

Hello,

We encountered an error when using the latest REST API for the External Report Gateway (ReportGatewayHandler.svc/Upload) :

500 - "{\"error\":{\"code\":\"ODATA_PROVIDER_ERROR\",\"message\":\"An internal server error occurred. Contact administrator.\",\"details\":[{\"code\":\"PROJECTION_IMPL_EXCEPTION\",\"message\":\"Error while pushing message to redis queue\"}]}}"

We followed the official documentation:

https://docs.ifs.com/techdocs/25r1/050_reporting/000_reporting/251_operational_reporting/001_report_design/010_operational_reports/400_external_reporting_gateway

All other REST APIs are working correctly.

Can anyone help us? 

Thanks.