ERROR OCCURED IN JOB: thread_starting_email (APP: hyperkitty) Traceback (most recent call last): File "/usr/lib/python3/dist-packages/hyperkitty/jobs/thread_starting_email.py", line 40, in execute thread.starting_email = thread.emails.get( File "/usr/lib/python3/dist-packages/django/db/models/manager.py", line 82, in manager_method return getattr(self.get_queryset(), name)(*args, **kwargs) File "/usr/lib/python3/dist-packages/django/db/models/query.py", line 406, in get raise self.model.DoesNotExist( hyperkitty.models.email.Email.DoesNotExist: Email matching query does not exist. During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 84, in _execute return self.cursor.execute(sql, params) File "/usr/lib/python3/dist-packages/django/db/backends/mysql/base.py", line 71, in execute return self.cursor.execute(query, args) File "/usr/lib/python3/dist-packages/MySQLdb/cursors.py", line 209, in execute res = self._query(query) File "/usr/lib/python3/dist-packages/MySQLdb/cursors.py", line 315, in _query db.query(q) File "/usr/lib/python3/dist-packages/MySQLdb/connections.py", line 226, in query _mysql.connection.query(self, query) MySQLdb._exceptions.IntegrityError: (1451, 'Cannot delete or update a parent row: a foreign key constraint fails (`mailman3web`.`hyperkitty_email`, CONSTRAINT `hyperkitty_email_thread_id_038c9aee_fk_hyperkitty_thread_id` FOREIGN KEY (`thread_id`) REFERENCES `hyperkitty_thread` (`id`))') The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/django_extensions/management/commands/runjobs.py", line 40, in runjobs job().execute() File "/usr/lib/python3/dist-packages/hyperkitty/jobs/thread_starting_email.py", line 47, in execute thread.delete() File "/usr/lib/python3/dist-packages/django/db/models/base.py", line 922, in delete return collector.delete() File "/usr/lib/python3/dist-packages/django/db/models/deletion.py", line 312, in delete count = query.delete_batch(pk_list, self.using) File "/usr/lib/python3/dist-packages/django/db/models/sql/subqueries.py", line 41, in delete_batch num_deleted += self.do_query(self.get_meta().db_table, self.where, using=using) File "/usr/lib/python3/dist-packages/django/db/models/sql/subqueries.py", line 24, in do_query cursor = self.get_compiler(using).execute_sql(CURSOR) File "/usr/lib/python3/dist-packages/django/db/models/sql/compiler.py", line 1142, in execute_sql cursor.execute(sql, params) File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 67, in execute return self._execute_with_wrappers(sql, params, many=False, executor=self._execute) File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 76, in _execute_with_wrappers return executor(sql, params, many, context) File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 84, in _execute return self.cursor.execute(sql, params) File "/usr/lib/python3/dist-packages/django/db/utils.py", line 89, in __exit__ raise dj_exc_value.with_traceback(traceback) from exc_value File "/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 84, in _execute return self.cursor.execute(sql, params) File "/usr/lib/python3/dist-packages/django/db/backends/mysql/base.py", line 71, in execute return self.cursor.execute(query, args) File "/usr/lib/python3/dist-packages/MySQLdb/cursors.py", line 209, in execute res = self._query(query) File "/usr/lib/python3/dist-packages/MySQLdb/cursors.py", line 315, in _query db.query(q) File "/usr/lib/python3/dist-packages/MySQLdb/connections.py", line 226, in query _mysql.connection.query(self, query) django.db.utils.IntegrityError: (1451, 'Cannot delete or update a parent row: a foreign key constraint fails (`mailman3web`.`hyperkitty_email`, CONSTRAINT `hyperkitty_email_thread_id_038c9aee_fk_hyperkitty_thread_id` FOREIGN KEY (`thread_id`) REFERENCES `hyperkitty_thread` (`id`))')