E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: com.formitask, PID: 5934
                  java.lang.IllegalStateException: Could not execute method for android:onClick
                      at android.view.View$DeclaredOnClickListener.onClick(View.java:4745)
                      at android.view.View.performClick(View.java:5702)
                      at android.view.View$PerformClick.run(View.java:22541)
                      at android.os.Handler.handleCallback(Handler.java:739)
                      at android.os.Handler.dispatchMessage(Handler.java:95)
                      at android.os.Looper.loop(Looper.java:158)
                      at android.app.ActivityThread.main(ActivityThread.java:7229)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
                   Caused by: java.lang.reflect.InvocationTargetException
                      at java.lang.reflect.Method.invoke(Native Method)
                      at android.view.View$DeclaredOnClickListener.onClick(View.java:4740)
                      at android.view.View.performClick(View.java:5702)
                      at android.view.View$PerformClick.run(View.java:22541)
                      at android.os.Handler.handleCallback(Handler.java:739)
                      at android.os.Handler.dispatchMessage(Handler.java:95)
                      at android.os.Looper.loop(Looper.java:158)
                      at android.app.ActivityThread.main(ActivityThread.java:7229)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
                   Caused by: java.lang.IllegalArgumentException: order does not contain a valid category.
                      at android.support.v7.view.menu.MenuBuilder.getOrdering(MenuBuilder.java:766)
                      at android.support.v7.view.menu.MenuBuilder.addInternal(MenuBuilder.java:439)
                      at android.support.v7.view.menu.MenuBuilder.add(MenuBuilder.java:473)
                      at com.formitask.app.Activity.BaseActivity.addGroupToMenu(BaseActivity.java:142)
                      at com.formitask.app.Activity.BaseActivity$UserInGroupListener$1.run(BaseActivity.java:209)
                      at android.app.Activity.runOnUiThread(Activity.java:6035)
                      at com.formitask.app.Activity.BaseActivity$UserInGroupListener.onNew(BaseActivity.java:205)
                      at com.formitask.app.Activity.BaseActivity$UserInGroupListener.onNew(BaseActivity.java:195)
                      at com.formitask.client.Cache.CacheCollection.onEntityAdded(CacheCollection.java:180)
                      at com.formitask.client.Cache.CacheCollection.put(CacheCollection.java:123)
                      at com.formitask.client.Sync.Communicator.addUserToGroup(Communicator.java:52)
                      at com.formitask.app.Activity.AddGroupActivity.groupFinished_onClick(AddGroupActivity.java:34)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at android.view.View$DeclaredOnClickListener.onClick(View.java:4740)
                      at android.view.View.performClick(View.java:5702)
                      at android.view.View$PerformClick.run(View.java:22541)
                      at android.os.Handler.handleCallback(Handler.java:739)
                      at android.os.Handler.dispatchMessage(Handler.java:95)
                      at android.os.Looper.loop(Looper.java:158)
                      at android.app.ActivityThread.main(ActivityThread.java:7229)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
I/Process: Sending signal. PID: 5934 SIG: 9