The CoinGecko API failed as the Honduran Lempira currency returned
null as value, rendering the API unusable:
```
11.19 | I | exchange_rate.CoinGecko | getting fx quotes for EUR
11.41 | E | exchange_rate.CoinGecko | failed fx quotes: InvalidOperation([<class 'decimal.ConversionSyntax'>])
Traceback (most recent call last):
File "/var/home/user/code/vibecoding_vm/electrum/electrum/exchange_rate.py", line 87, in update_safe
self._quotes = await self.get_rates(ccy)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/var/home/user/code/vibecoding_vm/electrum/electrum/exchange_rate.py", line 449, in get_rates
return dict([(ccy.upper(), to_decimal(d['value']))
~~~~~~~~~~^^^^^^^^^^^^
File "/var/home/user/code/vibecoding_vm/electrum/electrum/util.py", line 243, in to_decimal
return Decimal(str(x))
decimal.InvalidOperation: [<class 'decimal.ConversionSyntax'>]
```
```
"hnl":{"name":"Honduran Lempira","unit":"L","value":null,"type":"fiat"}
```
f321x
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