Kibana 7.5.0 - Unable to generate report Error: Failed to decrypt report job data

Hello,

I'm trying to run reports and get stock with that message in the reporting console:
`Unable to generate report

Error: Failed to decrypt report job data. Please ensure that xpack.reporting.encryptionKey is set and re-generate this report. Error: Unsupported state or unable to authenticate data

`
I run 1 instance of kibana and I set these settings inside kibana.yml:

xpack.reporting.csv.maxSizeBytes: 1048576000
xpack.reporting.queue.timeout: 1800000
xpack.reporting.encryptionKey: "12345678"

I,m new in that elk world ... So I don't know how to troubleshoot

Thank you