fix prev commit

src/main/java/com/sparrowwallet/sparrow/net/ElectrumServer.java

@@ -945,7 +945,7 @@ public class ElectrumServer {
                                         }
                                     }
 
-                                    throw new ServerException("Check if Bitcoin Core is running in server mode, and the authentication details are correct.\n\nSee https://sparrowwallet.com/docs/connect-node.html");
+                                    throw new ServerException("Check if Bitcoin Core is running, and the authentication details are correct.");
                                 }
                             } catch(InterruptedException e) {
                                 Thread.currentThread().interrupt();

src/main/java/com/sparrowwallet/sparrow/preferences/ServerPreferencesController.java

@@ -573,6 +573,8 @@ public class ServerPreferencesController extends PreferencesDetailController {
             reason += ". Check if the proxy server is running.";
         } else if(exception instanceof TorServerAlreadyBoundException) {
             reason += "\nIs a Tor proxy already running on port " + TorService.PROXY_PORT + "?";
+        } else if(reason != null && reason.contains("Check if Bitcoin Core is running")) {
+            reason += "\n\nSee https://sparrowwallet.com/docs/connect-node.html";
         }
 
         testResults.setText("Could not connect:\n\n" + reason);