环信退出登陆的的问题

退出的时候报下面的错误，不知道是怎么回事？？
 
10-13 11:51:56.176 26418-26418/? W/System.err: com.hyphenate.exceptions.EMNoActiveCallException: no imcoming active call
10-13 11:51:56.177 26418-26418/? W/System.err:     at com.hyphenate.chat.EMCallManager.endCall(Unknown Source)
10-13 11:51:56.177 26418-26418/? W/System.err:     at 
cn.chat.DemoHelper.endCall(DemoHelper.java:1109)
10-13 11:51:56.177 26418-26418/? W/System.err:     at 
cn.chat.DemoHelper.logout(DemoHelper.java:967)
10-13 11:51:56.177 26418-26418/? W/System.err:     at 
cn.app.SettingActivity.logout(SettingActivity.java:152)
10-13 11:51:56.177 26418-26418/? W/System.err:     at cn.app.SettingActivity$3.onClick(SettingActivity.java:235)
10-13 11:51:56.177 26418-26418/? W/System.err:     at android.view.View.performClick(View.java:5646)
10-13 11:51:56.177 26418-26418/? W/System.err:     at android.view.View$PerformClick.run(View.java:22459)
10-13 11:51:56.177 26418-26418/? W/System.err:     at android.os.Handler.handleCallback(Handler.java:761)
10-13 11:51:56.177 26418-26418/? W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:98)
10-13 11:51:56.177 26418-26418/? W/System.err:     at android.os.Looper.loop(Looper.java:156)
10-13 11:51:56.177 26418-26418/? W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:6523)
10-13 11:51:56.177 26418-26418/? W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
10-13 11:51:56.177 26418-26418/? W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941)
10-13 11:51:56.177 26418-26418/? W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)
 
 
10-13 11:51:56.180 26418-28551/? W/System.err: java.lang.InterruptedException
10-13 11:51:56.180 26418-28551/? W/System.err:     at java.lang.Object.wait(Native Method)
10-13 11:51:56.180 26418-28551/? W/System.err:     at java.lang.Object.wait(Object.java:407)
10-13 11:51:56.180 26418-28551/? W/System.err:     at com.hyphenate.chat.EMPushHelper.getDeviceToken(Unknown Source)
10-13 11:51:56.180 26418-28551/? W/System.err:     at com.hyphenate.chat.EMPushHelper$1.run(Unknown Source)