problem reading config.ini file

[sukanyaX]

I would like to use orvara to do a fit with only RV data, and so I'm using a config.ini where I've specified:

HipID = None
RVFile = orvara/tests/data/RVdata.dat
AstrometryFile = None
use_epoch_astrometry = False

Everything else is as is in the original distribution. I get the following error when I run this:

fit_orbit --output-dir /Users/sukanya/BHLC/pystellibs/orvara/orvara/GaiaBH4373output /Users/sukanya/BHLC/pystellibs/orvara/orvara/tests/config.ini
Traceback (most recent call last):
File "/Users/sukanya/miniconda3/envs/fororvara/bin/fit_orbit", line 33, in
sys.exit(load_entry_point('orvara', 'console_scripts', 'fit_orbit')())
File "/Users/sukanya/BHLC/pystellibs/orvara/orvara/main.py", line 310, in run
HipID = config.getint('data_paths', 'HipID', fallback=0)
File "/Users/sukanya/miniconda3/envs/fororvara/lib/python3.10/configparser.py", line 819, in getint
return self._get_conv(section, option, int, raw=raw, vars=vars,
File "/Users/sukanya/miniconda3/envs/fororvara/lib/python3.10/configparser.py", line 809, in _get_conv
return self._get(section, conv, option, raw=raw, vars=vars,
File "/Users/sukanya/miniconda3/envs/fororvara/lib/python3.10/configparser.py", line 804, in _get
return conv(self.get(section, option, **kwargs))
ValueError: invalid literal for int() with base 10: 'None'

Is there a better way to do RV-data only fits? Or do you see what I might be doing wrong?

Thanks for your help!
Sukanya