springboot The program sometimes "has been closed already", sometimes not

spring boot 2.2.3 sorry , has been closed already I don't know what triggered it? Because the program is exactly the same;

2020-02-16 16:31:20.177 [timeoutChecker_1] ERROR io.seata.core.rpc.netty.NettyClientChannelManager - Failed to get available servers: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4e92466a has been closed already
java.lang.IllegalStateException: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4e92466a has been closed already
    at org.springframework.context.support.AbstractApplicationContext.assertBeanFactoryActive(AbstractApplicationContext.java:1092)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1125)
    at io.seata.spring.boot.autoconfigure.util.SpringUtils.getBean(SpringUtils.java:56)
    at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider.get(SpringBootConfigurationProvider.java:106)
    at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider.access$100(SpringBootConfigurationProvider.java:59)
    at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider$1.intercept(SpringBootConfigurationProvider.java:72)
    at io.seata.config.FileConfiguration$$EnhancerByCGLIB$$862af1eb.getConfig(<generated>)
    at io.seata.discovery.registry.RegistryFactory.getInstance(RegistryFactory.java:43)
    at io.seata.core.rpc.netty.NettyClientChannelManager.getAvailServerList(NettyClientChannelManager.java:216)
    at io.seata.core.rpc.netty.NettyClientChannelManager.reconnect(NettyClientChannelManager.java:162)
    at io.seata.core.rpc.netty.AbstractRpcRemotingClient$1.run(AbstractRpcRemotingClient.java:112)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:305)
    at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java)
    at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.base/java.lang.Thread.run(Thread.java:830)
2020-02-16 16:31:20.224 [timeoutChecker_2] ERROR io.seata.core.rpc.netty.NettyClientChannelManager - Failed to get available servers: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4e92466a has been closed already
java.lang.IllegalStateException: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4e92466a has been closed already
    at org.springframework.context.support.AbstractApplicationContext.assertBeanFactoryActive(AbstractApplicationContext.java:1092)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1125)
    at io.seata.spring.boot.autoconfigure.util.SpringUtils.getBean(SpringUtils.java:56)
    at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider.get(SpringBootConfigurationProvider.java:106)
    at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider.access$100(SpringBootConfigurationProvider.java:59)
    at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider$1.intercept(SpringBootConfigurationProvider.java:72)
    at io.seata.config.FileConfiguration$$EnhancerByCGLIB$$862af1eb.getConfig(<generated>)
    at io.seata.discovery.registry.RegistryFactory.getInstance(RegistryFactory.java:43)
    at io.seata.core.rpc.netty.NettyClientChannelManager.getAvailServerList(NettyClientChannelManager.java:216)
    at io.seata.core.rpc.netty.NettyClientChannelManager.reconnect(NettyClientChannelManager.java:162)
    at io.seata.core.rpc.netty.AbstractRpcRemotingClient$1.run(AbstractRpcRemotingClient.java:112)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:305)
    at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java)
    at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.base/java.lang.Thread.run(Thread.java:830)