Transmission related run time error

[MahavirSingh20]

I have been working on GridPath copper plate system for quite a sometime. I have started working with multizonal approach and hence included transmission line. I have developed and ran the model, but received this error (kindly help):
ERROR:root:"Index '('ER_NER_Tx', 2024)' is not valid for indexed component 'TxNewLin_Build_MW'"
Traceback (most recent call last):
File "C:\Users\admin1\Desktop\GridPath\gridpath9\gridpath\run_end_to_end.py", line 298, in main
expected_objective_values = run_scenario.main(args=run_scenario_args)
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\run_scenario.py", line 852, in main
expected_objective_values = run_scenario(
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\run_scenario.py", line 300, in run_scenario
objective_values = run_optimization(
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\run_scenario.py", line 260, in run_optimization
save_results(
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\run_scenario.py", line 375, in save_results
export_results(scenario_directory, subproblem, stage, instance,
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\run_scenario.py", line 620, in export_results
m.export_results(
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\transmission\capacity\capacity.py", line 291, in export_results
imported_tx_capacity_modules[op_m].export_module_specific_results(
File "c:\users\admin1\desktop\gridpath\gridpath9\gridpath\transmission\capacity\capacity_types\tx_new_lin.py", line 347, in export_module_specific_results
value(m.TxNewLin_Build_MW[transmission_line, p])
File "C:\Users\admin1\AppData\Local\Programs\Python\Python39\lib\site-packages\pyomo\core\base\indexed_component.py", line 412, in getitem
validated_index = self._validate_index(index)
File "C:\Users\admin1\AppData\Local\Programs\Python\Python39\lib\site-packages\pyomo\core\base\indexed_component.py", line 571, in _validate_index
raise KeyError(
KeyError: "Index '('ER_NER_Tx', 2024)' is not valid for indexed component 'TxNewLin_Build_MW'