Erro ao inicializar o Tomcat

Logo que eu rodo o servidor já cai uma exception:

INFORMAÇÕES: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
jan 17, 2020 12:57:52 PM com.sun.faces.config.ConfigureListener contextInitialized
INFORMAÇÕES: Inicializando Mojarra 2.3.8 ( 20181116-0037 55af8b79ca53ec2df566f9c08a430259d30f9ba5) para o contexto '/JSF_Project'
jan 17, 2020 12:57:52 PM com.sun.faces.spi.InjectionProviderFactory createInstance
INFORMAÇÕES: JSF1048: Anotações PostConstruct/PreDestroy presentes.  Os métodos ManagedBeans marcados com essas anotações informarão as anotações processadas.
jan 17, 2020 12:57:52 PM com.sun.faces.config.ConfigureListener contextInitialized
GRAVE: Critical error during deployment: 
java.lang.NoClassDefFoundError: javax/enterprise/context/spi/Contextual
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at com.sun.faces.util.Util.loadClass(Util.java:333)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.addSystemEventListener(ApplicationConfigProcessor.java:1032)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.process(ApplicationConfigProcessor.java:370)
    at com.sun.faces.config.processor.AbstractConfigProcessor.invokeNext(AbstractConfigProcessor.java:155)
    at com.sun.faces.config.processor.LifecycleConfigProcessor.process(LifecycleConfigProcessor.java:138)
    at com.sun.faces.config.processor.AbstractConfigProcessor.invokeNext(AbstractConfigProcessor.java:155)
    at com.sun.faces.config.processor.FactoryConfigProcessor.process(FactoryConfigProcessor.java:246)
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:443)
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:237)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5195)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5720)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1707)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1697)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: javax.enterprise.context.spi.Contextual
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1955)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1798)

GRAVE: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener
java.lang.RuntimeException: java.lang.NoClassDefFoundError: javax/enterprise/context/spi/Contextual
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:315)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5195)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5720)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1707)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1697)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: javax/enterprise/context/spi/Contextual
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at com.sun.faces.util.Util.loadClass(Util.java:333)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.addSystemEventListener(ApplicationConfigProcessor.java:1032)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.process(ApplicationConfigProcessor.java:370)
    at com.sun.faces.config.processor.AbstractConfigProcessor.invokeNext(AbstractConfigProcessor.java:155)
    at com.sun.faces.config.processor.LifecycleConfigProcessor.process(LifecycleConfigProcessor.java:138)
    at com.sun.faces.config.processor.AbstractConfigProcessor.invokeNext(AbstractConfigProcessor.java:155)
    at com.sun.faces.config.processor.FactoryConfigProcessor.process(FactoryConfigProcessor.java:246)
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:443)
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:237)