upd bl

Plugins/BTCPayServer.Plugins.Blink/BlinkLightningConnectionStringHandler.cs

@@ -109,6 +109,12 @@ public class BlinkLightningConnectionStringHandler : ILightningConnectionStringH
             try
             {
                 bclient.GetBalance().GetAwaiter().GetResult();
+                if (!bclient.WalletCurrency.Equals("btc", StringComparison.InvariantCultureIgnoreCase))
+                {
+                    error = "Cannot use a non BTC denominated wallet";
+                    return null;
+                    
+                }
             }
             catch (Exception e)
             {