java.lang.RuntimeException: Unable to resume activity {com.entitcs.office_attendance/com.entitcs.office_attendance.activities.Drawer_Activity}: java.lang.NumberFormatException: For input string: "00:30:00"
	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4918)
	at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4955)
	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$H.handleMessage(ActivityThread.java:2336)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loop(Looper.java:246)
	at android.app.ActivityThread.main(ActivityThread.java:8653)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
Caused by: java.lang.NumberFormatException: For input string: "00:30:00"
	at java.lang.Long.parseLong(Long.java:594)
	at java.lang.Long.parseLong(Long.java:636)
	at com.entitcs.office_attendance.activities.Drawer_Activity.getTimeDiff(Drawer_Activity.java:3356)
	at com.entitcs.office_attendance.activities.Drawer_Activity.onResume(Drawer_Activity.java:3365)
	at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1456)
	at android.app.Activity.performResume(Activity.java:8353)
	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4908)
	... 11 more