org.apache.tomcat.util.digester.Digester.fatalError Parse fatal error at line [40] column [36]
org.xml.sax.SAXParseException; lineNumber: 40; columnNumber: 36; The value of attribute “password” associated with an element type “user” must not contain the ‘<‘ character.

Solution:
apache-tomcat-10.0.12\conf\tomcat-users

  <user username=”admin” password=”admin” roles=”manager-gui”/>
<user username=”robot” password=”<must-be-changed>” roles=”manager-script”/>
<user username=”tomcat” password=”admin” roles=”tomcat”/>
<user username=”both” password=”<must-be-changed>” roles=”tomcat,role1″/>
<user username=”role1″ password=”<must-be-changed>” roles=”role1″/>

Change password, e.g.
<user username=”robot” password=”admin” roles=”manager-script”/>