MQTT Broker with Kerlink iFemtocell

Hello, I’m following this tuto Kerlink - ChirpStack open-source LoRaWAN<sup>®</sup> Network Server and when I have to connect the MQTT broker I can’t find the referenced file /etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml Even after searching in the other files it doesn’t exist.