How to fix "Error executing DDL "alter table events drop foreign key FKg0mkvgsqn8584qoql6a2rxheq" via JDBC Statement"

Change spring.jpa.hibernate.ddl-auto = create-drop to update. It is dropping the database at start so wont find the required events table to alter anything.

In my case the problem why i got this exception was, that some tables had names which are reserved for postgreSQL. eg. "Like" or "User". Changed name with:

@Table(name="likes") 

and it worked fine. Perhaps someone has the same problem.