diff --git a/Logging/MemoryLogger.cs b/Logging/MemoryLogger.cs
index a612587..019600f 100644
--- a/Logging/MemoryLogger.cs
+++ b/Logging/MemoryLogger.cs
@@ -62,7 +62,7 @@ public class MemoryLogger : LoggerBase
                     ret.Add(_logMessages.GetValueAtIndex(_lastLogMessageIndex + retIndex).ToString());
                 }
             }
-            catch (NullReferenceException e)//Called when LogMessage has not finished writing
+            catch (NullReferenceException)//Called when LogMessage has not finished writing
             {
                 break;
             }
diff --git a/Tranga/MangaConnectors/MangaConnector.cs b/Tranga/MangaConnectors/MangaConnector.cs
index 834c74f..a6bcef0 100644
--- a/Tranga/MangaConnectors/MangaConnector.cs
+++ b/Tranga/MangaConnectors/MangaConnector.cs
@@ -225,7 +225,7 @@ public abstract class MangaConnector : GlobalBase
             }
             if (progressToken?.cancellationRequested ?? false)
             {
-                progressToken?.Complete();
+                progressToken.Complete();
                 return HttpStatusCode.RequestTimeout;
             }
             progressToken?.Increment();
diff --git a/Tranga/Server.cs b/Tranga/Server.cs
index bd9625e..7ba6122 100644
--- a/Tranga/Server.cs
+++ b/Tranga/Server.cs
@@ -52,7 +52,7 @@ public class Server : GlobalBase
                 });
                 t.Start();
             }
-            catch (HttpListenerException e)
+            catch (HttpListenerException)
             {
                 
             }