NB-IoT Board adding External sensors

I am actually adding for a testing project a DHT11 sensor into the “All sensors sketch” instead of using the NB-IoT one (HTS221). So that, in that case, I will be able to get more realistic data, since HTS221 sensor is providing senseless data. However, I am getting “0” value for both variables, and then process is getting stuck with no more sensor values anymore, as you can see on the screenshots below…

I think it is related about “dht” variables format I am using, but I cannot solve the issue…May I receive some help with it, please?

Many Thanks