// Start H2 daemon
server = Server.createTcpServer("-tcpDaemon").start();

// Connect Hikari to H2 server
HikariConfig hkConfig = new HikariConfig();
    hkConfig.setDriverClassName("org.h2.Driver");
    hkConfig.setJdbcUrl("jdbc:h2:" + server.getURL() + "/./ghost;MODE=MySQL;IFEXISTS=false");
    ...

org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database "C:/Users/Cole/IdeaProjects/ghost2/ghost" not found, and IFEXISTS=true, so we cant auto-create it