error launching register page

[Cyrusjjj]

2020-03-05 02:18:37.820 8430-8437/? E/art: Failed writing handshake bytes (-1 of 14): Broken pipe 2020-03-05 02:18:43.356 8430-8430/coms.dypatil.noticeboard E/AndroidRuntime: FATAL EXCEPTION: main Process: coms.dypatil.noticeboard, PID: 8430 java.lang.RuntimeException: Unable to start activity ComponentInfo{coms.dypatil.noticeboard/coms.dypatil.noticeboard.ui.activity.RegisterActivity}: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=-1 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756) Caused by: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=-1 at java.lang.String.substring(String.java:1931) at coms.dypatil.noticeboard.util.SpnListUtil.getListFromString(SpnListUtil.kt:122) at coms.dypatil.noticeboard.util.SpnListUtil.getTeachingDeptList(SpnListUtil.kt:17) at coms.dypatil.noticeboard.util.ProfileBuilderUtil.(ProfileBuilderUtil.kt:25) at coms.dypatil.noticeboard.ui.activity.RegisterActivity.onCreate(RegisterActivity.kt:53) at android.app.Activity.performCreate(Activity.java:6662) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)  at android.app.ActivityThread.-wrap12(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:154)  at android.app.ActivityThread.main(ActivityThread.java:6077)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)