error when deleting mail on shared mailbox after migration

[stb]

We just migrate our system on 8.8.15_GA_3890 and using individual mailboxes are working fine.
We have some shared mailboxes where we are not able to delete or move mail messages.
Here's the error detail displayed

I disabled and enabled the sharing for a delegate but the result is still the same

I do not know what to do else.

Thanks in advance for your help

Code: Select all

Critique
	
Erreur inconnue (zclient.UPLOAD_FAILED).
method:	[unknown]
msg:	upload failed, response: 401,'null'
code:	zclient.UPLOAD_FAILED
detail:	soap:Sender
trace:	qtp366590980-97647:1617258676159:568a2445279d7507
request:	

Body: {
  ConvActionRequest: {
    _jsns: "urn:zimbraMail",
    action: {
      id: "a39310e3-13d8-4bd5-80a6-3f6ba4f1ed74:-10372",
      l: "3",
      op: "copy"
     }
   }
 },
Header: {
  context: {
    _jsns: "urn:zimbra",
    account: {
      _content: "stephane.belche@pierret.com",
      by: "name"
     },
    authToken: "(removed)",
    csrfToken: "0_791415f625df618f5be266857259c60cabd0aaba",
    notify: {
      seq: 39
     },
    session: {
      _content: 11769,
      id: 11769
     },
    userAgent: {
      name: "ZimbraWebClient - FF87 (Win)",
      version: "8.8.15_GA_3890"
     }
   }
 }