K10 7.0.3 export failed

Hi,

All my exports bakups are failed for 2 days: i have this error message on export:

  error:
    cause: '{"cause":{"cause":{"cause":{"cause":{"message":"error dialing backend:
      proxy error from 127.0.0.1:9345 while dialing 172.16.1.204:10250, code
      503: 503 Service Unavailable.\nstdout: \nstderr:
      "},"file":"github.com/kanisterio/kanister@v0.0.0-20240627181416-b9b522b6fa79/pkg/kube/exec.go","function":"github.com/kanisterio/kanister/pkg/kube.ExecWithOptions","linenumber":156,"message":"Failed
      to exec command in
      pod"},"file":"kasten.io/k10/kio/kopia/repository.go:700","function":"kasten.io/k10/kio/kopia.ConnectToKopiaRepository","linenumber":700,"message":"Failed
      to connect to the backup
      repository"},"fields":[{"name":"appNamespace","value":"dolibarr-vi"}],"file":"kasten.io/k10/kio/exec/phases/phase/export.go:271","function":"kasten.io/k10/kio/exec/phases/phase.prepareKopiaRepoIfExportingData","linenumber":271,"message":"Failed
      to create Kopia repository for data
      export"},"file":"kasten.io/k10/kio/exec/phases/phase/export.go:172","function":"kasten.io/k10/kio/exec/phases/phase.(*exportRestorePointPhase).Run","linenumber":172,"message":"Failed
      to copy artifacts"}'
    message: Job failed to be executed

When this message appeared, kasten was in version 6.5.14. I have upgrade to 7.0.3 but i have the same error. Have you some advice to troubleshot my problem ?

Thank you !