bug in backup

[omdaezz50]

when i press on backup button this error happen

Traceback (most recent call last):
File "/mnt/extra-addons/queue_job/controllers/main.py", line 104, in runjob
self._try_perform_job(env, job)
File "/mnt/extra-addons/queue_job/controllers/main.py", line 36, in _try_perform_job
job.perform()
File "/mnt/extra-addons/queue_job/job.py", line 517, in perform
self.result = self.func(*tuple(self.args), **self.kwargs)
File "/mnt/extra-addons/saas_backups/models/saas_db_backup.py", line 57, in _create_backup_job
res = self.origin_build_id.operator_id._create_backup(self.origin_build_id.name)
File "/mnt/extra-addons/saas/models/saas_operator.py", line 183, in _create_backup
return self._create_backup_internal(db_name)
File "/mnt/extra-addons/saas/models/saas_operator.py", line 179, in _create_backup_internal
return cluster.create_backup(db_name)
File "/mnt/extra-addons/saas_cluster_simple/main.py", line 132, in create_backup
db.dump_db(db_name, f)
File "", line 2, in dump_db
File "/usr/lib/python3/dist-packages/odoo/service/db.py", line 41, in if_db_mgt_enabled
return method(self, *args, **kwargs)
File "/usr/lib/python3/dist-packages/odoo/service/db.py", line 245, in dump_db
odoo.tools.exec_pg_command(*cmd)
File "/usr/lib/python3/dist-packages/odoo/tools/misc.py", line 133, in exec_pg_command
raise Exception('Postgres subprocess %s error %s' % (args2, rc))
Exception: Postgres subprocess ('/usr/bin/pg_dump', '--no-owner', '--file=/tmp/tmpfgx_f4u1/dump.sql', 'smart') error 1