spring cloud gateway is not working

[ManojKanasugara]

https://drive.google.com/file/d/17r4mFmlnXmixOQ8uAE_bGuhEf3ig_Sop/view?usp=sharing

this is the link of spring cloud api gate way which i am not able run it.....

2021-01-04 08:20:34.509 ERROR 4612 --- [ctor-http-nio-6] a.w.r.e.AbstractErrorWebExceptionHandler : [029c859b-2] 500 Server Error for HTTP GET "/users-ws/users/check/status"

java.net.UnknownHostException: failed to resolve 'HMECL002925.happiestminds.com' after 3 queries

at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1013) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 

Error has been observed at the following site(s):

|_ checkpoint ⇢ org.springframework.cloud.gateway.filter.WeightCalculatorWebFilter [DefaultWebFilterChain]

|_ checkpoint ⇢ HTTP GET "/users-ws/users/check/status" [ExceptionHandlingWebHandler]

Stack trace:

	at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1013) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsResolveContext.tryToFinishResolve(DnsResolveContext.java:966) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsResolveContext.query(DnsResolveContext.java:414) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsResolveContext.onResponse(DnsResolveContext.java:625) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsResolveContext.access$400(DnsResolveContext.java:63) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsResolveContext$2.operationComplete(DnsResolveContext.java:458) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:605) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsQueryContext.trySuccess(DnsQueryContext.java:201) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsQueryContext.finish(DnsQueryContext.java:193) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.resolver.dns.DnsNameResolver$DnsResponseHandler.channelRead(DnsNameResolver.java:1230) ~[netty-resolver-dns-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[netty-codec-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:93) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.55.Final.jar:4.1.55.Final]

	at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]