Lightcurve error: Parameter scan points for 4FGL J0334.3+3920::Prefactor include infinite value.

[nyctophile-aayu]

Hi I am getting the similar issue for 10 day binning.

Error:

2024-12-09 14:40:04 INFO lightcurve_659145600_660009600 GTBinnedAnalysis.write_xml(): Writing /home/draco/Ayush/since_beginning/RDG/4C+39.12/659145600,733622405/data/lightcurve_659145600_660009600/base_01.xml...
2024-12-09 14:40:04 INFO lightcurve_659145600_660009600 GTBinnedAnalysis.write_xml(): Writing /home/draco/Ayush/since_beginning/RDG/4C+39.12/659145600,733622405/data/lightcurve_659145600_660009600/base_02.xml...
2024-12-09 14:40:04 INFO lightcurve_659145600_660009600 GTBinnedAnalysis.write_xml(): Writing /home/draco/Ayush/since_beginning/RDG/4C+39.12/659145600,733622405/data/lightcurve_659145600_660009600/base_03.xml...
Joint fit ['4FGL J0423.9+4150']
2024-12-09 14:40:05 WARNING lightcurve_659145600_660009600 GTAnalysis.profile_norm(): Source model for source 4FGL J0334.3+3920 has no counts in ROI
2024-12-09 14:40:05 WARNING lightcurve_659145600_660009600 GTAnalysis.profile_norm(): Upper limit not found. Refitting normalization.```

RemoteTraceback Traceback (most recent call last)
RemoteTraceback:
"""
Traceback (most recent call last):
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/multiprocessing/pool.py", line 125, in worker
result = (True, func(*args, **kwds))
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/lightcurve.py", line 181, in _process_lc_bin
fit_results = _fit_lc(gta, name, **kwargs)
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/lightcurve.py", line 59, in _fit_lc
gta.fit()
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/gtanalysis.py", line 3074, in fit
self.update_source(name, reoptimize=config['reoptimize'])
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/gtanalysis.py", line 4106, in update_source
sd = self.get_src_model(name, paramsonly, reoptimize, npts,
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/gtanalysis.py", line 4264, in get_src_model
lnlp = self.profile_norm(name, savestate=True,
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/gtanalysis.py", line 2472, in profile_norm
o = self.profile(name, parName,
File "/home/draco/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/gtanalysis.py", line 2684, in profile
raise RuntimeError(
RuntimeError: Parameter scan points for 4FGL J0334.3+3920::Prefactor include infinite value.
"""

The above exception was the direct cause of the following exception:

RuntimeError Traceback (most recent call last)
Cell In[11], line 2
1 # Generate a lightcurve freeing sources within 3 deg of the source of interest
----> 2 lc = gta.lightcurve('4C +39.12', binsz=86400.*10.0, free_radius=3.0, multithread=True, nthread=10) # Bin size 86400.*7.0 means 7 day binning

File ~/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/lightcurve.py:290, in LightCurve.lightcurve(self, name, **kwargs)
286 config = schema.create_config(config, **kwargs)
288 self.logger.info('Computing Lightcurve for %s' % name)
--> 290 o = self.make_lc(name, **config)
291 filename = utils.format_filename(self.workdir, 'lightcurve',
292 prefix=[config['prefix'],
293 name.lower().replace(' ', '')])
295 o['file'] = None

File ~/miniforge3/envs/fermipy/lib/python3.9/site-packages/fermipy/lightcurve.py:451, in LightCurve._make_lc(self, name, **kwargs)
448 flux_const = None
449 for i, time in enumerate(zip(times[:-1], times[1:])):
--> 451 next_fit = next(mapo)
453 #delete temporary data products
454 if not kwargs.get('save_bin_data', False):

File ~/miniforge3/envs/fermipy/lib/python3.9/multiprocessing/pool.py:870, in IMapIterator.next(self, timeout)
868 if success:
869 return value
--> 870 raise value

RuntimeError: Parameter scan points for 4FGL J0334.3+3920::Prefactor include infinite value.

Code:
lc = gta.lightcurve('4C +39.12', binsz=86400.*10.0, free_radius=3.0, multithread=True, nthread=10) #616

Please suggest some resolution soon.