RPC_ERROR

Odoo Server Error

Traceback (most recent call last):
  File "/odoo/enterprise/account_reports/controllers/main.py", line 29, in get_report
    generated_file_data = report.dispatch_report_action(options, file_generator)
  File "/odoo/enterprise/account_reports/models/account_report.py", line 1687, in dispatch_report_action
    return getattr(self, action)(*args)
  File "/odoo/enterprise/account_reports/models/account_report.py", line 3977, in export_to_xlsx
    lines = self._filter_out_folded_children(print_mode_self._get_lines(print_options))
  File "/odoo/enterprise/account_reports/models/account_report.py", line 1805, in _get_lines
    lines = self._fully_unfold_lines_if_needed(lines, options)
  File "/odoo/enterprise/account_reports/models/account_report.py", line 1873, in _fully_unfold_lines_if_needed
    to_insert = self._expand_unfoldable_line(line_dict['expand_function'], line_dict['id'], groupby, options, progress, 0,
  File "/odoo/enterprise/account_reports/models/account_report.py", line 3687, in _expand_unfoldable_line
    expansion_result = expand_function(line_dict_id, groupby, options, progress, offset, unfold_all_batch_data=unfold_all_batch_data)
  File "/odoo/enterprise/account_reports/models/account_partner_ledger.py", line 299, in _report_expand_unfoldable_line_partner_ledger
    init_balance_by_col_group = unfold_all_batch_data['initial_balances'][record_id]
KeyError: None