I have installed CoinPayments.net Coin Adapter extension, connected to coinpayments successifuly, all coins shown in admin dashboard, all ok in backend, but in frontend no one widget does not work…
Where is the problem?
2. Visit the JSON API endpoint get_coins_info. Use your browser to go to https://example.com/?__wallets_apiversion=3&__wallets_action=get_coins_info (substitute example.com with your own domain). What do you get back? If you don’t get back a proper JSON response, this could mean that there is an issue with caching plugins, the web server configuration, or even something else.
Show me what you found in 1 and 2 and I will advise.