error cambiar utilidad

python

RPC_ERROR
Odoo Server Error
Traceback (most recent call last):
  File "/home/odoo/instance/odoo/odoo/models.py", line 5887, in ensure_one
    _id, = self._ids
ValueError: too many values to unpack (expected 1)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/odoo/instance/odoo/odoo/http.py", line 1783, in _serve_db
    return service_model.retrying(self._serve_ir_http, self.env)
  File "/home/odoo/instance/odoo/odoo/service/model.py", line 133, in retrying
    result = func()
  File "/home/odoo/instance/odoo/odoo/http.py", line 1810, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "/home/odoo/instance/odoo/odoo/http.py", line 2014, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "/home/odoo/instance/odoo/addons/website/models/ir_http.py", line 235, in _dispatch
    response = super()._dispatch(endpoint)
  File "/home/odoo/instance/odoo/odoo/addons/base/models/ir_http.py", line 221, in _dispatch
    result = endpoint(**request.params)
  File "/home/odoo/instance/odoo/odoo/http.py", line 757, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "/home/odoo/instance/odoo/addons/web/controllers/dataset.py", line 24, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/home/odoo/instance/odoo/addons/web/controllers/dataset.py", line 20, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/odoo/instance/odoo/odoo/api.py", line 468, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/home/odoo/instance/odoo/odoo/api.py", line 453, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/home/odoo/instance/odoo/addons/web/models/models.py", line 1029, in onchange
    snapshot0 = RecordSnapshot(record, fields_spec, fetch=(not first_call))
  File "/home/odoo/instance/odoo/addons/web/models/models.py", line 1168, in __init__
    self.fetch(name)
  File "/home/odoo/instance/odoo/addons/web/models/models.py", line 1181, in fetch
    self[field_name] = {line.id: RecordSnapshot(line, sub_fields_spec) for line in lines}
  File "/home/odoo/instance/odoo/addons/web/models/models.py", line 1181, in <dictcomp>
    self[field_name] = {line.id: RecordSnapshot(line, sub_fields_spec) for line in lines}
  File "/home/odoo/instance/odoo/addons/web/models/models.py", line 1168, in __init__
    self.fetch(name)
  File "/home/odoo/instance/odoo/addons/web/models/models.py", line 1183, in fetch
    self[field_name] = self.record[field_name]
  File "/home/odoo/instance/odoo/odoo/models.py", line 6669, in __getitem__
    return self._fields[key].__get__(self, self.env.registry[self._name])
  File "/home/odoo/instance/odoo/odoo/fields.py", line 1207, in __get__
    self.compute_value(recs)
  File "/home/odoo/instance/odoo/odoo/fields.py", line 1389, in compute_value
    records._compute_field_value(self)
  File "/home/odoo/instance/odoo/odoo/models.py", line 4913, in _compute_field_value
    fields.determine(field.compute, self)
  File "/home/odoo/instance/odoo/odoo/fields.py", line 102, in determine
    return needle(*args)
  File "/home/odoo/instance/extra_addons/spc/business_case/models/business_case_line.py", line 397, in _compute_social_security
    record.social_security = record.quantity * self.hourly_cost_id.hour_social_security
  File "/home/odoo/instance/odoo/odoo/fields.py", line 1148, in __get__
    record.ensure_one()
  File "/home/odoo/instance/odoo/odoo/models.py", line 5890, in ensure_one
    raise ValueError("Expected singleton: %s" % self)
ValueError: Expected singleton: hourly.cost(117, 119)

The above server error caused the following client error:
RPC_ERROR: Odoo Server Error
    RPCError@https://prod170.spc02.deployv.com/web/assets/d1bcd0b/web.assets_web.min.js:2907:319
    makeErrorFromResponse@https://prod170.spc02.deployv.com/web/assets/d1bcd0b/web.assets_web.min.js:2910:163
    jsonrpc/promise</<@https://prod170.spc02.deployv.com/web/assets/d1bcd0b/web.assets_web.min.js:2914:34