java.lang.RuntimeException: Unable to resume activity {com.entitcs.office_attendance/com.entitcs.office_attendance.activities.Drawer_Activity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.net.NetworkInfo.isAvailable()' on a null object reference
	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4571)
	at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4603)
	at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:52)
	at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2161)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loop(Looper.java:236)
	at android.app.ActivityThread.main(ActivityThread.java:7912)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:620)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1011)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.net.NetworkInfo.isAvailable()' on a null object reference
	at com.entitcs.office_attendance.model_classes.b.h(Unknown Source:22)
	at com.entitcs.office_attendance.activities.Drawer_Activity.P(Unknown Source:308)
	at com.entitcs.office_attendance.activities.Drawer_Activity.onResume(Unknown Source:3)
	at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1455)
	at android.app.Activity.performResume(Activity.java:8264)
	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4561)
	... 11 more