OF 3.7.1 with OF 4.0.2 Server to Server Failed to route packet to JID

Hi Community, I have to OF Servers. The first OF Server has the version 3.7.1 installed and is responsible for the domain pizza.pasta.int

The second Server has the version 4.0.2 installed and is responsible for the domain vino.bianco.pizza.pasta.int

If I try to get the room list from a client in the domain vino.bianco.pizza.pasta.int I receive the following error in the Server log:

2019.01.16 14:05:12 org.jivesoftware.openfire.spi.RoutingTableImpl - RoutingTableImpl: Failed to route packet to JID: user1@vino.bianco.pizza.pasta.int/61c0giftlr packet:

Do you have any ideas?

Thanks in advance

Olli