Update app.py

app.py

@@ -117,7 +117,7 @@ def get_moon_info(date_time: str) -> dict:
         user_time = pytz.utc.localize(user_time)
 
         # Load ephemeris and timescale
-        planets = load('de421.bsp')
+        planets = load('https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/a_old_versions/de421.bsp')
         ts = load.timescale()
         t = ts.from_datetime(user_time)