mqttasyncclient

Hi I have an app that works fine and connects nicely to mqtt with newer Android (8,9,10). I am using mqtt lib 1.01 I have tried to install it in a old 6.1 phone I have and the app crashes upon calling: B4X: mqtt.Initialize("mqtt", BrokerProtocol & "://" & BrokerAddr & ":" & BrokerPort...