timeout when chaging bug status via website or API

https://oops.canonical.com/?oopsid=OOPS-a11f46e0ec5c106c13cf03881b348571 - oops hard to load also.

RequestExpired: request expired.

    Traceback (most recent call last):
  Module zope.publisher.publish, line 134, in publish
    result = publication.callObject(request, obj)
  Module lazr.restful.publisher, line 212, in callObject
    WebServicePublicationMixin, self).callObject(request, object)
  Module lp.services.webapp.publication, line 469, in callObject
    return mapply(ob, request.getPositionalArguments(), request)
  Module zope.publisher.publish, line 109, in mapply
    return debug_call(obj, args)
   - __traceback_info__: <security proxied lazr.restful._resource.EntryResource instance at 0x15288310>
  Module zope.publisher.publish, line 115, in debug_call
    return obj(*args)
  Module lazr.restful._resource, line 923, in __call__
    result = self.do_PATCH(media_type, representation)
  Module lazr.restful._resource, line 1605, in do_PATCH
    return self.applyChanges(changeset, media_type)
  Module lazr.restful._resource, line 1218, in applyChanges
    notify(event)
  Module zope.event, line 23, in notify
    subscriber(event)
  Module zope.component.event, line 26, in dispatch
    zope.component.subscribers(event, None)
  Module zope.component._api, line 138, in subscribers
    return sitemanager.subscribers(objects, interface)
  Module zope.component.registry, line 323, in subscribers
    return self.adapters.subscribers(objects, provided)
  Module zope.interface.adapter, line 579, in subscribers
    subscription(*objects)
  Module zope.component.event, line 34, in objectEventNotify
    zope.component.subscribers((event.object, event), None)
  Module zope.component._api, line 138, in subscribers
    return sitemanager.subscribers(objects, interface)
  Module zope.component.registry, line 323, in subscribers
    return self.adapters.subscribers(objects, provided)
  Module zope.interface.adapter, line 579, in subscribers
    subscription(*objects)
  Module lp.services.database.sqlbase, line 547, in block_implicit_flushes_decorator
    return func(*args, **kwargs)
  Module lp.bugs.subscribers.bugtask, line 44, in notify_bugtask_edited
    new_subscribers=new_subs)
  Module lp.bugs.subscribers.bug, line 170, in add_bug_change_notifications
    level=change.change_level)
  Module lp.bugs.model.bug, line 1113, in getBugNotificationRecipients
    recipients.update(self._notification_recipients_for_lifecycle)
  Module lp.services.propertycache, line 116, in __get__
    value = self.populate(instance)
  Module lp.bugs.model.bug, line 1094, in _notification_recipients_for_lifecycle
    BugNotificationLevel.LIFECYCLE)
  Module lp.bugs.model.bug, line 1087, in _getBugNotificationRecipients
    self.getIndirectSubscribers(recipients, level=level)
  Module lp.bugs.model.bug, line 994, in getIndirectSubscribers
    self.getAlsoNotifiedSubscribers(recipients, level),
  Module lp.bugs.model.bug, line 1080, in getAlsoNotifiedSubscribers
    return get_also_notified_subscribers(self, recipients, level)
  Module lp.bugs.model.bug, line 2197, in get_also_notified_subscribers
    also_notified_subscribers = info.also_notified_subscribers
  Module lp.services.propertycache, line 116, in __get__
    value = self.populate(instance)
  Module lp.bugs.model.bug, line 2546, in also_notified_subscribers
    self.structural_subscribers, self.all_assignees)
  Module lp.bugs.model.bug, line 2520, in structural_subscribers
    return self.structural_subscriptions.subscribers
  Module lp.services.propertycache, line 116, in __get__
    value = self.populate(instance)
  Module lp.bugs.model.bug, line 2323, in wrapper
    return factory(func(*args, **kwargs))
  Module storm.store, line 997, in __iter__
    result = self._store._connection.execute(self._get_select())
  Module storm.databases.postgres, line 266, in execute
    return Connection.execute(self, statement, params, noresult)
  Module storm.database, line 238, in execute
    raw_cursor = self.raw_execute(statement, params)
  Module storm.databases.postgres, line 276, in raw_execute
    return Connection.raw_execute(self, statement, params)
  Module storm.database, line 316, in raw_execute
    statement, params or ())
  Module storm.database, line 371, in _check_disconnect
    return function(*args, **kwargs)
  Module storm.tracer, line 216, in trace
    attr(*args, **kwargs)
  Module lp.services.webapp.adapter, line 609, in connection_raw_execute
    if self.get_remaining_time() is None:
  Module lp.services.webapp.adapter, line 646, in get_remaining_time
    return get_request_remaining_seconds()
  Module lp.services.webapp.adapter, line 352, in get_request_remaining_seconds
    raise RequestExpired('request expired.')
RequestExpired: request expired.