Status 500

[isagonza]

I have a list of 86 cities across the country. I'm making a request to get the list of stations per city using latitude, longitude and the office. 69 of them return the information I need but 17 of them return this error (around the 20% of the cities):

'title': 'Unexpected Problem',
'type': 'https://api.weather.gov/problems/UnexpectedProblem',
'status': 500,
'detail': 'An unexpected problem has occurred.',

I would like to know what can I do to get the stations, I need them to request the observations e. g. https://api.weather.gov/stations/KPTN/observations

Thanks!