我在做一个springboot项目。我拥有以下实体：

@Entity
@Table(name = "authors")
public class Author {

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "author_seq")
    @SequenceGenerator(name = "author_seq", 
        sequenceName = "authors_authorid_seq", schema = "public")
    private int authorid;
    private String name;
    private String surname;

    public Author() {
    }

    public int getAuthorid() {
        return authorid;
    }

    public void setAuthorid(int authorid) {
        this.authorid = authorid;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSurname() {
        return surname;
    }

    public void setSurname(String surname) {
        this.surname = surname;
    }

}

数据库中有以下序列：
authors_authorid_seq bookborrow_id_seq books_bookid_seq users_userid_seq 我得到以下错误： org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: missing sequence [public.authors_authorid_seq] 你能帮我解释一下我做错了什么吗？我的hibernate版本是5.4.25。谢谢