guru mediation error when you cannot connect to broker

[Tntceria]

If my esp32 cannot connect to a broker or if the broker is down I keep getting a guru mediation error causing the esp32 to restart, this ends up draining the battery on my IOT device. Below is the section of code that causes the error, I never see the message "MQTT failed"

// connect to MQTT server
void connectMQTT() {
// Wait until we're connected
while (!client.connected()) {
// Create a random client ID
String clientId = "ESP32-";
clientId += String(random(0xffff), HEX);
Serial.printf("MQTT connecting as client %s...\n", clientId.c_str());
// Attempt to connect
if (client.connect(clientId.c_str(),mqtt_username,mqtt_password)) {
Serial.println("MQTT connected");
// Once connected, publish an announcement...
client.publish(topic, "hello from ESP32");
// ... and resubscribe
client.subscribe(topic);
} else {
Serial.printf("MQTT failed, state %s, retrying...\n", client.state());
// Wait before retrying
delay(2500);
}
}
}