diff --git a/BTCPayServer/Services/Altcoins/Monero/Services/MoneroListener.cs b/BTCPayServer/Services/Altcoins/Monero/Services/MoneroListener.cs
index ed6338faa..dd2cdac37 100644
--- a/BTCPayServer/Services/Altcoins/Monero/Services/MoneroListener.cs
+++ b/BTCPayServer/Services/Altcoins/Monero/Services/MoneroListener.cs
@@ -309,7 +309,7 @@ namespace BTCPayServer.Services.Altcoins.Monero.Services
                         });
                 return result;
             }
-            catch (JsonRpcClient.JsonRpcApiException e)
+            catch (JsonRpcClient.JsonRpcApiException)
             {
                 return null;
             }
diff --git a/BTCPayServer/Services/LightningHistogramService.cs b/BTCPayServer/Services/LightningHistogramService.cs
index 3dec4822f..aed650b0f 100644
--- a/BTCPayServer/Services/LightningHistogramService.cs
+++ b/BTCPayServer/Services/LightningHistogramService.cs
@@ -10,7 +10,7 @@ namespace BTCPayServer.Services;
 
 public class LightningHistogramService
 {
-    public async Task<HistogramData> GetHistogram(ILightningClient lightningClient, HistogramType type, CancellationToken cancellationToken)
+    public Task<HistogramData> GetHistogram(ILightningClient lightningClient, HistogramType type, CancellationToken cancellationToken)
     {
         var (days, pointCount) = type switch
         {
@@ -29,7 +29,7 @@ public class LightningHistogramService
 
         // TODO: We can't just list all invoices and payments, we need to filter them by date
         // but the client doesn't support that yet so let's just disable this for now. See #6518
-        return null;
+        return Task.FromResult<HistogramData>(null);
     }
 
     private class LnTx