Tomcat does not start successfully

I am on Appian 19.3. When starting up Tomcat, I am getting the following error. What could be the issue and how should I go about resolving this?

2019-11-14 11:07:58,320 [localhost-startStop-1] INFO com.appiancorp.rdbms.hb.DataSourceManagerHbImpl - [jdbc/AppianPrimaryDS] Checking schema and migrating if necessary (appian/db/changelog/db-changelog-master.xml)...
2019-11-14 11:12:59,379 [localhost-startStop-1] INFO com.appian.dl.repo.es.client.TransportClientManager - Shutting down client.
2019-11-14 11:12:59,386 [localhost-startStop-1] ERROR org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.filterChains': Cannot resolve reference to bean 'org.springframework.security.web.DefaultSecurityFilterChain#58' while setting bean property 'sourceList' with key [58]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.web.DefaultSecurityFilterChain#58': Cannot resolve reference to bean 'mobileClientValidationFilter' while setting constructor argument with key [0]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mobileClientValidationFilter' defined in ServletContext resource [/WEB-INF/conf/security/spring-security-05-web-api.xml]: Cannot resolve reference to bean 'httpBasicAuthenticationEntryPoint' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'httpBasicAuthenticationEntryPoint' defined in ServletContext resource [/WEB-INF/conf/security/spring-security-05-web-api.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.appiancorp.security.auth.HttpBasicAuthenticationEntryPoint]: Constructor threw exception; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.IllegalStateException: [jdbc/AppianPrimaryDS] Error during schema migration.