fix errors

rowers/weather.py

@@ -38,7 +38,10 @@ def get_weather_data(long, lat, unixtime):
         return 0
 
     if s.ok:
-        return s.json()
+        try:
+            return s.json()
+        except:
+            return 0
     else:  # pragma: no cover
         return 0