Erro al confirmar venta

RPC_ERROR
Odoo Server Error
Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/api.py", line 997, in get
    cache_value = field_cache[record._ids[0]]
KeyError: 2293

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/fields.py", line 1161, in __get__
    value = env.cache.get(record, self)
  File "/home/odoo/src/odoo/odoo/api.py", line 1004, in get
    raise CacheMiss(record, field)
odoo.exceptions.CacheMiss: 'sale.order(2293,).amount_credit_limit'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/http.py", line 1658, in _serve_db
    return service_model.retrying(self._serve_ir_http, self.env)
  File "/home/odoo/src/odoo/odoo/service/model.py", line 133, in retrying
    result = func()
  File "/home/odoo/src/odoo/odoo/http.py", line 1686, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "/home/odoo/src/odoo/odoo/http.py", line 1890, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "/home/odoo/src/odoo/addons/website/models/ir_http.py", line 237, in _dispatch
    response = super()._dispatch(endpoint)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_http.py", line 154, in _dispatch
    result = endpoint(**request.params)
  File "/home/odoo/src/odoo/odoo/http.py", line 734, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "/home/odoo/src/odoo/addons/web/controllers/dataset.py", line 46, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/home/odoo/src/odoo/addons/web/controllers/dataset.py", line 33, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/odoo/src/odoo/odoo/api.py", line 468, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/home/odoo/src/odoo/odoo/api.py", line 453, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/home/odoo/src/user/odoo-mastercore/stock_addons/picking_sale_order_automatic/models/sale_order.py", line 18, in action_confirm
    res = super(SaleOrder, self).action_confirm()
  File "/home/odoo/src/user/odoo-mastercore/detodo_addons/partner_tier/models/sale_order.py", line 66, in action_confirm
    if amount_sale_total > self.amount_credit_limit:
  File "/home/odoo/src/odoo/odoo/fields.py", line 1210, in __get__
    self.compute_value(recs)
  File "/home/odoo/src/odoo/odoo/fields.py", line 1392, in compute_value
    records._compute_field_value(self)
  File "/home/odoo/src/odoo/addons/sale/models/sale_order.py", line 1405, in _compute_field_value
    return super()._compute_field_value(field)
  File "/home/odoo/src/odoo/addons/mail/models/mail_thread.py", line 403, in _compute_field_value
    return super()._compute_field_value(field)
  File "/home/odoo/src/odoo/odoo/models.py", line 4259, in _compute_field_value
    fields.determine(field.compute, self)
  File "/home/odoo/src/odoo/odoo/fields.py", line 98, in determine
    return needle(*args)
  File "/home/odoo/src/user/odoo-mastercore/detodo_addons/partner_tier/models/sale_order.py", line 32, in _compute_amount_credit_limit
    elif rec.rec.partner_id.particular_amount_credit_limit:
AttributeError: 'sale.order' object has no attribute 'rec'

The above server error caused the following client error:
RPC_ERROR: Odoo Server Error
    RPCError@https://odoo-mastercore-detodo-odo-staging-18373942.dev.odoo.com/web/assets/15744-1e6a2e0/web.assets_backend.min.js:1005:274
    makeErrorFromResponse@https://odoo-mastercore-detodo-odo-staging-18373942.dev.odoo.com/web/assets/15744-1e6a2e0/web.assets_backend.min.js:1009:163
    jsonrpc/promise</<@https://odoo-mastercore-detodo-odo-staging-18373942.dev.odoo.com/web/assets/15744-1e6a2e0/web.assets_backend.min.js:1017:34