Hi Vegard,
we consider allowing the user to set their own message in the paywall field.
For the backend, wordpress offers community translation:
https://translate.wordpress.org/projects/wp-plugins/mediopay/
Hi. This sounds like you did not set an receiver address. Go to settings – > Mediopay and set an address / moneybutton id / paymail address. Also set a currency 5o denominated the amount.
If a paymail address doesn’t work, set a moneybutton ID or a simple bsv address.