You do not have adequate permissions to carry out this operation

I’m having problems with the Mail app.
I can not add the email address of the local server
Server CentOS nextcloud + mail server + ldap

log

Horde_Imap_Client_Exception_ServerResponse: You do not have adequate permissions to carry out this operation.

/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Socket.php - line 4561:
Horde_Imap_Client_Socket->_responseCode(Horde_Imap_C ... }}, Horde_Imap_C ... }})
/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Socket.php - line 4309:
Horde_Imap_Client_Socket->_getLine(Horde_Imap_C ... }})
/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Socket.php - line 4237:
Horde_Imap_Client_Socket->_sendCmdChunk(Horde_Imap_C ... }}, [ Horde_Imap ... }])
/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Socket.php - line 1751:
Horde_Imap_Client_Socket->_sendCmd(Horde_Imap_C ... }})
/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Base.php - line 1728:
Horde_Imap_Client_Socket->_status([ Horde_Imap_Client_Mailbox {}], 8717)
/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Base.php - line 4033:
Horde_Imap_Client_Base->status([ "Public"], 8717)
/usr/share/nextcloud/apps/mail/vendor/pear-pear.horde.org/Horde_Imap_Client/Horde/Imap/Client/Base.php - line 3585:
Horde_Imap_Client_Base->_syncStatus("Public")
/usr/share/nextcloud/apps/mail/lib/IMAP/FolderMapper.php - line 69:
Horde_Imap_Client_Base->getSyncToken("Public")
/usr/share/nextcloud/apps/mail/lib/Service/MailManager.php - line 87:
OCA\Mail\IMAP\FolderMapper->getFolders(OCA\Mail\Account {}, Horde_Imap_C ... e})
/usr/share/nextcloud/apps/mail/lib/Controller/FoldersController.php - line 74:
OCA\Mail\Service\MailManager->getFolders(OCA\Mail\Account {})
/usr/share/nextcloud/lib/private/AppFramework/Http/Dispatcher.php - line 166:
OCA\Mail\Controller\FoldersController->index(9)
/usr/share/nextcloud/lib/private/AppFramework/Http/Dispatcher.php - line 99:
OC\AppFramework\Http\Dispatcher->executeController(OCA\Mail\Con ... {}, "index")
/usr/share/nextcloud/lib/private/AppFramework/App.php - line 118:
OC\AppFramework\Http\Dispatcher->dispatch(OCA\Mail\Con ... {}, "index")
/usr/share/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php - line 47:
OC\AppFramework\App::main("OCA\\Mail\\ ... r", "index", OC\AppFramew ... {}, { accountId: ... "})
<<closure>>
OC\AppFramework\Routing\RouteActionHandler->__invoke({ accountId: ... "})
/usr/share/nextcloud/lib/private/Route/Router.php - line 297:
call_user_func(OC\AppFramew ... {}, { accountId: ... "})
/usr/share/nextcloud/lib/base.php - line 987:
OC\Route\Router->match("/apps/mail/ ... s")
/usr/share/nextcloud/index.php - line 42:
OC::handleRequest()

How do i solve this problem?