App crash throwing Android.Runtime.JavaProxyThrowable

Hi,

I get some random crashes just after the app is launched.
Here is all the log I get.

System.Exception: OnUnhandledException ---> Android.Runtime.JavaProxyThrowable: Exception of type 'Android.Runtime.JavaProxyThrowable' was thrown.
--- End of inner exception stack trace ---

Device : acer iconia one 10
Android version : marshmallow 6.0
xamarin forms : 2.4.0.280

Thanks
Raghav