Error en validación técnica / módulo instalaciones.

RPC_ERROR
Odoo Server Error
Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/api.py", line 886, in get
    return field_cache[record._ids[0]]
KeyError: 697

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/fields.py", line 1082, in __get__
    value = env.cache.get(record, self)
  File "/home/odoo/src/odoo/odoo/api.py", line 889, in get
    raise CacheMiss(record, field)
odoo.exceptions.CacheMiss: 'crm.technical.validation(697,).picking_ids'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
    result = request.dispatch()
  File "/home/odoo/src/odoo/odoo/http.py", line 698, in dispatch
    result = self._call_function(**self.params)
  File "/home/odoo/src/odoo/odoo/http.py", line 368, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/service/model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/http.py", line 357, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 921, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 546, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/odoo/addons/web/controllers/main.py", line 1282, in search_read
    return self.do_search_read(model, fields, offset, limit, domain, sort)
  File "/home/odoo/src/odoo/addons/web/controllers/main.py", line 1301, in do_search_read
    return Model.web_search_read(domain, fields, offset=offset, limit=limit, order=sort)
  File "/home/odoo/src/odoo/addons/web/models/models.py", line 62, in web_search_read
    records = self.search_read(domain, fields, offset=offset, limit=limit, order=order)
  File "/home/odoo/src/odoo/odoo/models.py", line 5079, in search_read
    result = records.read(fields, **read_kwargs)
  File "/home/odoo/src/odoo/odoo/models.py", line 3236, in read
    return self._read_format(fnames=fields, load=load)
  File "/home/odoo/src/odoo/odoo/models.py", line 3256, in _read_format
    vals[name] = convert(record[name], record, use_name_get)
  File "/home/odoo/src/odoo/odoo/models.py", line 5917, in __getitem__
    return self._fields[key].__get__(self, type(self))
  File "/home/odoo/src/odoo/odoo/fields.py", line 2617, in __get__
    return super().__get__(records, owner)
  File "/home/odoo/src/odoo/odoo/fields.py", line 1131, in __get__
    self.compute_value(recs)
  File "/home/odoo/src/odoo/odoo/fields.py", line 1290, in compute_value
    records._compute_field_value(self)
  File "/home/odoo/src/odoo/odoo/models.py", line 4270, in _compute_field_value
    fields.determine(field.compute, self)
  File "/home/odoo/src/odoo/odoo/fields.py", line 87, in determine
    return needle(*args)
  File "/home/odoo/src/user/odoo-mastercore/isp_addons/crm_isp/models/crm_technical_validation.py", line 58, in compute_picking_ids
    rec.picking_tree_ids = rec.crm_lead_id.picking_ids
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/http.py", line 654, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/odoo/src/odoo/odoo/http.py", line 301, in _handle_exception
    raise exception.with_traceback(None) from new_cause
AttributeError: 'crm.technical.validation' object has no attribute 'picking_tree_ids'