application could not be activated

Folks, we've developped an application running on samsung Galaxy watch (LTE version) based on SDK. According to our design and the sdk build-in support, our application  should be launched when received the lanch or alarm messages from  the push server. It does work usually, but fails sometimes. And in recent 2 days, the failure possibility increases, i.e. our application wasn't able to be activated frequently, although the receiving counter shows that the alarm message did arrive for sure. 

Could anyone help me out? Or encountered the similar problem in your application?