Null Pointer Exception

[uwedisch]

I get this when running or starting the container:

19:31:07.936 INFO  - Info enabled
19:31:07.940 INFO  - Connecting MQTT client
19:31:08.510 INFO  - MQTT client connected
Exception in thread "OkHttp Dispatcher" java.lang.NullPointerException
	at de.rnd7.mqtttelegram.telegram.BotService.handleUpdate(BotService.java:59)
	at java.util.ArrayList.forEach(ArrayList.java:1257)
	at de.rnd7.mqtttelegram.telegram.BotService.lambda$start$1(BotService.java:50)
	at com.pengrad.telegrambot.impl.UpdatesHandler$1.onResponse(UpdatesHandler.java:73)
	at com.pengrad.telegrambot.impl.UpdatesHandler$1.onResponse(UpdatesHandler.java:49)
	at com.pengrad.telegrambot.impl.TelegramBotClient$1.onResponse(TelegramBotClient.java:52)
	at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:519)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Wireshark trace shows that connection to Telegram API is established. I only see one packet application data from the container to Telegram and afterwards one from Telegram to the container. I used the config.json and filled in my own data.

Using latest build of mqtt-to-telegram with Docker on Ubuntu 22.04 LTS.