me.gudong.translate crash logcat

02-27 01:58:36.828: I/ActivityManager(853): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=me.gudong.translate/.ui.activitys.MainActivity (has extras)} from uid 10014 on display 0
02-27 01:58:36.891: I/ActivityManager(853): Start proc 8703:me.gudong.translate/u0a128 for activity me.gudong.translate/.ui.activitys.MainActivity
02-27 01:58:36.949: W/System(8703): ClassLoader referenced unknown path: /data/app/me.gudong.translate-1/lib/arm
02-27 01:58:37.366: E/AndroidRuntime(8703): Process: me.gudong.translate, PID: 8703
02-27 01:58:37.366: E/AndroidRuntime(8703): java.lang.RuntimeException: Unable to start activity ComponentInfo{me.gudong.translate/me.gudong.translate.ui.activitys.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String java.lang.CharSequence.toString()' on a null object reference
02-27 01:58:37.366: E/AndroidRuntime(8703): 	at me.gudong.translate.ui.activitys.MainActivity.initSearchContent(MainActivity.java:91)
02-27 01:58:37.366: E/AndroidRuntime(8703): 	at me.gudong.translate.ui.activitys.MainActivity.onCreate(MainActivity.java:86)
02-27 01:58:37.372: W/ActivityManager(853):   Force finishing activity me.gudong.translate/.ui.activitys.MainActivity
02-27 01:58:37.674: I/WindowManager(853): Screenshot max retries 4 of Token{afbc288 ActivityRecord{1a63e2b u0 me.gudong.translate/.ui.activitys.MainActivity t756 f}} appWin=Window{f598659 u0 Starting me.gudong.translate} drawState=4
02-27 01:58:38.176: W/ActivityManager(853): Activity pause timeout for ActivityRecord{1a63e2b u0 me.gudong.translate/.ui.activitys.MainActivity t756 f}
02-27 01:58:40.541: I/ActivityManager(853): Process me.gudong.translate (pid 8703) has died