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:5753)
	at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:5786)
	at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:286)
	at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:262)
	at android.app.servertransaction.TransactionExecutor.executeLifecycleItem(TransactionExecutor.java:234)
	at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:110)
	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:84)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2889)
	at android.os.Handler.dispatchMessage(Handler.java:107)
	at android.os.Looper.loopOnce(Looper.java:249)
	at android.os.Looper.loop(Looper.java:337)
	at android.app.ActivityThread.main(ActivityThread.java:9601)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:615)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)
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.onResume(Unknown Source:11)
	at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1734)
	at android.app.Activity.performResume(Activity.java:9392)
	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:5741)
	... 14 more