After creating a service-user - mails can no longer be fetched

[lindner_igzev_de]

I have a new Service-desk installation. I have configured a mailbox to fetch mails. Tickets were created automatically. After that I created an additional Support-user and gave him rights to the project. Additionally I syncronized an active directory for the customers.
Now no more mails are collected...; - (
Also disabling and deleting the user doesn't bring any improvement.

2018-01-11 10:17:00,904 Caesium-1-2 WARN anonymous    ticket [c.a.mail.incoming.mailfetcherservice] ticket[10100]: Der Vorgang kann aufgrund einer ungültigen Lizenz nicht erstellt werden: [Sie können derzeit keine Vorgänge erstellen, da dafür Zugriff auf eine JIRA-Anwendung erforderlich ist. Um Zugriff auf eine Anwendung zu erhalten, müssen Sie Mitglied einer Gruppe sein, die einer Anwendung zugewiesen ist.]

[Alexey Matveev]

Hello,

There is a problem with your license. It is expried or maybe there are more users than the license permit. Have a look at the license data of you installed applications

[lindner_igzev_de]

Hi Alexey

The licenses should be fine, and they were bought three weeks ago.
There is only one account in use. The license includes three accounts.

[lindner_igzev_de]

addendum
If I deactivate the external user directory, the mail handler can retrieve mails and generate a ticket from them.
The user directory is only for the employees to open tickets. The service desk agents are only managed in the local directory. That's only two agents.

[Markus Remmel]

I have the same problem. What had been the solution?