Yes the domain address is a forgetfulness of my part but this is not very serious since the site in question is empty.
If you had the address of the site, you may have found that the page wallet does not work?
The thing that works most is that with the extension “Block io” the wallet page is displayed correctly and the BTC address of deposit is delivered by the online wallet “block io”, but not with the extension coinpayment.
That’s why I think that the problem comes from the plugin itself …
I may eventually give you full access to the site if you wish.
You will see for yourself the problems I encounter with your plugin?
If you wish to test on our site, please inform me, I remain at your disposal all evening.