Troquei a porta do server.xml pra 80 e agora ele da erro

Eu fiz conforme a aula porem quando eu troquei para 80 ele me deu o seguinte erro: HTTP Error 404. The requested resource is not found.

ja tentei trocar pra pasta raiz do computador mas o erro continua, segue o codigo que eu alterei

 <Connector port="80" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

E ao analisar o console do servidor me apareceu o seguinte erro

 [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[HTTP/1.1-80]]
        org.apache.catalina.LifecycleException: Protocol handler initialization failed
                at org.apache.catalina.connector.Connector.initInternal(Connector.java:1049)
                at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
                at org.apache.catalina.core.StandardService.initInternal(StandardService.java:558)
                at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
                at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:1045)
                at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
                at org.apache.catalina.startup.Catalina.load(Catalina.java:724)
                at org.apache.catalina.startup.Catalina.load(Catalina.java:746)
                at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
                at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.base/java.lang.reflect.Method.invoke(Method.java:564)
                at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:302)
                at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:472)
        Caused by: java.net.BindException: Address already in use: bind
                at java.base/sun.nio.ch.Net.bind0(Native Method)
                at java.base/sun.nio.ch.Net.bind(Net.java:479)
                at java.base/sun.nio.ch.Net.bind(Net.java:468)
                at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:220)
                at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:277)
                at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:241)
                at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1193)
                at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1206)
                at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:597)
                at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:80)
                at org.apache.catalina.connector.Connector.initInternal(Connector.java:1046)
                ... 13 more