Error in environment flow calculation

[kkcai-PKU]

Hi, when I output the environment flow, the following error is reported. How should I handle this?

Configuration of setting.ini**************
#-------------------------------------------------------
[ENVIRONMENTALFLOW]
#-------------------------------------------------------
calc_ef_afterRun = True
OUT_Dir = $(FILE_PATHS:PathOut)
OUT_MAP_12month = MMF, MQ90, EF_VMF

Error message****************************
Step Date Discharge
90 30/03/1980 0.01 Traceback (most recent call last):
File "D:\GitHub\CWatM\run_cwatm.py", line 39, in
main(settings, args)
File "D:\GitHub\CWatM\cwatm\run_cwatm.py", line 334, in main
success, last_dis = CWATMexe(settingsfile[0])
^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\GitHub\CWatM\cwatm\run_cwatm.py", line 149, in CWATMexe
stCWATM.run()
File "D:\GitHub\CWatM\cwatm\management_modules\dynamicModel.py", line 45, in run
self.step()
File "D:\GitHub\CWatM\cwatm\management_modules\dynamicModel.py", line 31, in step
self._model.dynamic()
File "D:\GitHub\CWatM\cwatm\cwatm_dynamic.py", line 154, in dynamic
self.output_module.dynamic()
File "D:\GitHub\CWatM\cwatm\management_modules\output.py", line 459, in dynamic
outMap[map][i][2] = writenetcdf(netfile, varname,"", "undefined", eval(in1), date1, j+1, flag1, True,12)
^^^^^^^^^
File "", line 1, in
TypeError: 'int' object is not subscriptable