Failed to delete the environment

MOS 9.2

Attempt to delete the env in fuel:
receiverd.log contains the following traceback

2018-10-16 12:29:32.764 ERROR [7f9029472740] (receiverd) Message consume failed: <kombu.transport.pyamqp.Message object at 0x4754050>
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/nailgun/rpc/receiverd.py", line 54, in consume_msg
    callback(**body["args"])
  File "/usr/lib/python2.7/site-packages/nailgun/rpc/receiver.py", line 211, in remove_cluster_resp
    objects.Cluster.delete(cluster)
  File "/usr/lib/python2.7/site-packages/nailgun/objects/cluster.py", line 277, in delete
    fire_callback_on_cluster_delete(instance)
  File "/usr/lib/python2.7/site-packages/nailgun/extensions/manager.py", line 125, in fire_callback_on_cluster_delete
    extension.on_cluster_delete(cluster)
  File "/usr/lib/python2.7/site-packages/cluster_upgrade/extension.py", line 50, in on_cluster_delete
    relations.UpgradeRelationObject.delete_relation(cluster.id)
  File "/usr/lib/python2.7/site-packages/cluster_upgrade/objects/relations.py", line 35, in delete_relation
    cls._query_cluster_relations(cluster_id).delete()
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/query.py", line 3048, in delete
    delete_op.exec_()
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 1127, in exec_
    self._do_exec()
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 1311, in _do_exec
    mapper=self.mapper)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/session.py", line 1034, in execute
    bind, close_with_result=True).execute(clause, params or {})
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 914, in execute
    return meth(self, multiparams, params)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/sql/elements.py", line 323, in _execute_on_connection
    return connection._execute_clauseelement(self, multiparams, params)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1010, in _execute_clauseelement
    compiled_sql, distilled_params
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1146, in _execute_context
    context)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1341, in _handle_dbapi_exception
    exc_info
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/util/compat.py", line 200, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb, cause=cause)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1139, in _execute_context
    context)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/default.py", line 450, in do_execute
    cursor.execute(statement, parameters)
ProgrammingError: (psycopg2.ProgrammingError) relation "cluster_upgrade_relations" does not exist
LINE 1: DELETE FROM cluster_upgrade_relations WHERE cluster_upgrade_...
                    ^
 [SQL: 'DELETE FROM cluster_upgrade_relations WHERE cluster_upgrade_relations.orig_cluster_id = %(orig_cluster_id_1)s OR cluster_upgrade_relations.seed_cluster_id = %(seed_cluster_id_1)s'] [parameters: {'orig_clu
ster_id_1': 37, 'seed_cluster_id_1': 37}]

Will share the snapshot and logs shortly