E-Mails not receiving automatically "Dynamic field configuration is not valid!"

[dlarisch]

Hello guys,

I recently updated from 3.3.3 to 5.0.4 and now I have a problem with the OTRS Daemon.

Now I get these error messages in the log:

Dynamic field configuration is not valid!

and

Kernel::System::Daemon::DaemonModules::SchedulerGenericAgentTaskManager depends on Kernel::System::DynamicField::Backend, but the constructor of Kernel::System::DynamicField::Backend returned undef.

So I can manually get the emails into the otrs system but its not happening automatically. What is the problem?

.....regards Dennis