Can you show me please 1-2 examples from  Computation Engine for Prefix of account code in Profit and Loss report (Odoo v16 Enterprise Edition)? I need sum of all accounts with 51 prefix and I have still a bug there.

RPC_ERROR
Odoo Server Error
Traceback (most recent call last):
File "/home/odoo/src/odoo/16.0/odoo/http.py", line 1584, in _serve_db
return service_model.retrying(self._serve_ir_http, self.env)
File "/home/odoo/src/odoo/16.0/odoo/service/model.py", line 134, in retrying
result = func()
File "/home/odoo/src/odoo/16.0/odoo/http.py", line 1613, in _serve_ir_http
response = self.dispatcher.dispatch(rule.endpoint, args)
File "/home/odoo/src/odoo/16.0/odoo/http.py", line 1810, in dispatch
result = self.request.registry['ir.http']._dispatch(endpoint)
File "/home/odoo/src/odoo/16.0/odoo/addons/base/models/ir_http.py", line 149, in _dispatch
result = endpoint(**request.params)
File "/home/odoo/src/odoo/16.0/odoo/http.py", line 699, in route_wrapper
result = endpoint(self, *args, **params_ok)
File "/home/odoo/src/odoo/16.0/addons/web/controllers/dataset.py", line 42, in call_kw
return self._call_kw(model, method, args, kwargs)
File "/home/odoo/src/odoo/16.0/addons/web/controllers/dataset.py", line 33, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/home/odoo/src/odoo/16.0/odoo/api.py", line 461, in call_kw
result = _call_kw_multi(method, model, args, kwargs)
File "/home/odoo/src/odoo/16.0/odoo/api.py", line 448, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "/home/odoo/src/enterprise/16.0/account_reports/models/account_report.py", line 3537, in get_report_informations
return self.env['account.report'].browse(options['report_id']).get_report_informations({**previous_options, 'report_id': options['report_id']})
File "/home/odoo/src/enterprise/16.0/account_reports/models/account_report.py", line 3547, in get_report_informations
all_column_groups_expression_totals = self._compute_expression_totals_for_each_column_group(self.line_ids.expression_ids, options)
File "/home/odoo/src/enterprise/16.0/account_reports/models/account_report.py", line 2133, in _compute_expression_totals_for_each_column_group
current_group_expression_totals = self._compute_expression_totals_for_single_column_group(
File "/home/odoo/src/enterprise/16.0/account_reports/models/account_report.py", line 2272, in _compute_expression_totals_for_single_column_group
aggregation_formula_results = self._compute_totals_no_batch_aggregation(column_group_options, aggregation_formulas_dict, column_group_expression_totals, cross_report_expr_totals_by_scope)
File "/home/odoo/src/enterprise/16.0/account_reports/models/account_report.py", line 2317, in _compute_totals_no_batch_aggregation
line_code_result_dict[expression.label] = self.env.company.currency_id.round(expression_res['value'])
File "/home/odoo/src/odoo/16.0/odoo/addons/base/models/res_currency.py", line 186, in round
return tools.float_round(amount, precision_rounding=self.rounding)
File "/home/odoo/src/odoo/16.0/odoo/tools/float_utils.py", line 72, in float_round
normalized_value = value / rounding_factor # normalize
TypeError: unsupported operand type(s) for /: 'builtin_function_or_method' and 'float'

The above server error caused the following client error:
null