我使用了一台iPhone7,版本是iOS11.4.1，调用TTS文字转换语音，说完话之后，会导致手机卡死六七秒后，才能完成，打印了如下错误Log，请问一下怎么解决呢？

2018-09-05 15:25:08.641223+0800 CFMusicLight[22954:8459691] order:19
[TRACE][AppThread.cpp:329]Thread end (SP ~ 0x16bf5aec8, threadID: 0x16bf5b000

[TRACE][AppThread.cpp:47]============================================= AppThread::~AppThread() ====================================

2018-09-05 15:26:02.335683+0800 CFMusicLight[22954:8459691] CredStore - performQuery - Error copying matching creds. Error=-25300, query={
class = inet;
"m_Limit" = "m_LimitAll";
"r_Attributes" = 1;
sync = syna;
}