I have uploaded a fix for this with version 6.0.0-RC3.

Before the free plan would allow 750 calls per month, so it was ok to contact the API every hour.

Now the free plan allows 100 requests per month, so I’ve set the fiat rates to update every 8 hours.

This should be ok, since fiat currencies have low volatility, compared to cryptos.

Again thank you for your help. Let me know if you encounter more difficulties.

with regards