Hello,
Please see the troubleshooting section of the coin adapter for the error “too many errors in the last two minutes”. Essentially you need to re-check your codes, deactivate the plugin for two minutes, then enable it again and the problem should go away.
If you get an error in the CoinPayments platform when enabling a coin, this is not related to the plugin. I am not sure why you would get this error. You should ask CoinPayments support about it.
The plugin requires the cron job to be running. There is no URL to trigger the cron job externally at the moment, although this is in my future plans.
with regards
P.S. Could you please open a new thread per individual topic in the future? This makes things clearer for everyone reading this. Thank you!