Applicationserver doesn't receive messages

Hello,

I have a setup here with a Lora Device. With the LoRa device I can send messages via the LoRa network. The messages I sent show up on the debugger page, so that works fine
I also have a application server. At the Developer port you can test the connection. I did this multiple time and everything is ok. My applicationserver receives the HTTPS POST messages.

My problem: When I send a message via LoRa I never receive a message on my application server.

What did I do wrong?