在Android原生App中集成SDK，经常白屏然后闪退

原生App中有一个Fragment界面是配置应用插件（打开应用插件即SDK.startWebApp(), 然后打开跳转到调用plus的H5界面），退出应用时则调用plus.runtime.quit(), 返回原生界面，低端机上打开几次就会出现先白屏然后闪退的情况，

请问下这个需要怎么优化？

闪退日志：
W/System.err: java.lang.NullPointerException: Attempt to invoke interface method 'boolean io.dcloud.common.DHInterface.IApp.needRefreshApp()' on a null object reference
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at io.dcloud.common.b.b.d.n(DHFrameView.java:682)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at io.dcloud.common.b.b.d.g(DHFrameView.java:516)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at io.dcloud.common.b.b.d$2.a(DHFrameView.java:429)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at io.dcloud.common.b.b.d$2.a(DHFrameView.java:383)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at io.dcloud.common.b.b.d$2$1.run(DHFrameView.java:411)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at android.os.Handler.handleCallback(Handler.java:743)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at android.os.Looper.loop(Looper.java:150)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5621)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at java.lang.reflect.Method.invoke(Native Method)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
06-14 14:57:28.289 32698-32698/com.ijuyou.qipaoxian W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)