My app crashes at a screen

[thecreatix (Raju Ranjan Prajapati)]

What is the reason for this crash?

java.lang.SecurityException: at android.os.Parcel.createExceptionOrNull (Parcel.java:2385) at android.os.Parcel.createException (Parcel.java:2369) at android.os.Parcel.readException (Parcel.java:2352) at android.os.Parcel.readException (Parcel.java:2294) at com.android.internal.telephony.ITelephony$Stub$Proxy.getNetworkTypeForSubscriber (ITelephony.java:8762) at android.telephony.TelephonyManager.getNetworkType (TelephonyManager.java:3706) at android.telephony.TelephonyManager.getNetworkT…