Fix error initializing coinmarketcap

freqtrade/fiat_convert.py

@@ -8,6 +8,7 @@ import time
 from typing import Dict
 
 from coinmarketcap import Market
+from requests.exceptions import RequestException
 
 logger = logging.getLogger(__name__)
 
@@ -94,8 +95,8 @@ class CryptoToFiatConverter(object):
             coinlistings = self._coinmarketcap.listings()
             self._cryptomap = dict(map(lambda coin: (coin["symbol"], str(coin["id"])),
                                        coinlistings["data"]))
-        except ValueError:
-            logger.error("Could not load FIAT Cryptocurrency map")
+        except (ValueError, RequestException) as e:
+            logger.error("Could not load FIAT Cryptocurrency map for the following problem: %s", e)
 
     def convert_amount(self, crypto_amount: float, crypto_symbol: str, fiat_symbol: str) -> float:
         """