9 – HOw can I delete the last content from database in Drupal?

I have created a content type and have hidden the title from form displays. Then I added content without a title and my Drupal broke:

DrupalCoreEntityEntityStorageException: SQLSTATE(23502): Not null violation: 7 ERROR: null
value in column “title” violates not-null constraint
DETAIL: Failing row contains (3, 4, pay
89 12/Jan 16:00 node Error DrupalCoreDatabaseIntegrityConstraintViolationException: SQLSTATE(23502): Not null violation: 7
ERROR: null value in column “title” violates not-null constraint
DETAIL: Failing row co

How can I fix that?