CrashedCheckBellowForHintsWhy AssetBundle_CUSTOM_LoadAsset_Internal for unity5.2.3p3

iPhone 6s
9.3.2 (13F69) System Version
2.68G( 22.94% ) Disk available than
47.31M ( 2.36% ) Of memory available
Unity 5.2.3 p3
Thread: finalFCK#0

SIGTRAP
0 finalFCK 0x00097f10 CrashedCheckBellowForHintsWhy() (CrashReporter.mm:97-106)
1 finalFCK 0x011d8a98 m_UnityEngine_UnhandledExceptionHandler_HandleUnhandledException_object_System_UnhandledExceptionEventArgs (UnityEngine.dll.s:920)
2 finalFCK 0x0174cb54...

CrashedCheckBellowForHintsWhy AssetBundle_CUSTOM_LoadAsset_Internal for unity5.2.3p3