fix crashes caused by null bindings

Author: meiron03

PennMobile/src/main/AndroidManifest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    android:versionCode="73"
-    android:versionName="3.1.2">
+    android:versionCode="74"
+    android:versionName="3.1.3">
 
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <application