If users are complaining about crashes, normally I would expect that to be an "app closed unexpectedly" type of crash, in which case I'm afraid little of what
Fengist mentioned is relevant. It would mean the browser engine or OS crashed, in which case nothing you can do in Construct, JavaScript or dev tools will help you. However the Play Store dashboard should have reports about any crashes that happened in your app with more details about them.
This is why it's critical to get more information about the exact problem - without clear information about exactly what people mean and what they are seeing, all anyone can do is throw out wild guesses.