diff --git a/EpinelPS/EpinelPS.csproj b/EpinelPS/EpinelPS.csproj
index 5623047..ec90aca 100644
--- a/EpinelPS/EpinelPS.csproj
+++ b/EpinelPS/EpinelPS.csproj
@@ -9,6 +9,7 @@
 		<PublishSingleFile>true</PublishSingleFile>
 		<SelfContained>true</SelfContained>
 		<IncludeNativeLibrariesForSelfExtract>True</IncludeNativeLibrariesForSelfExtract>
+		<NoWarn>$(NoWarn);SYSLIB0057</NoWarn>
 		<Version>0.1.4.2</Version>
 	</PropertyGroup>
 
diff --git a/EpinelPS/LobbyServer/Character/DoLimitBreak.cs b/EpinelPS/LobbyServer/Character/DoLimitBreak.cs
index c714c52..898ed90 100644
--- a/EpinelPS/LobbyServer/Character/DoLimitBreak.cs
+++ b/EpinelPS/LobbyServer/Character/DoLimitBreak.cs
@@ -17,7 +17,7 @@ namespace EpinelPS.LobbyServer.Character
             // Get all character data from the game's character table
             var fullchardata = GameData.Instance.characterTable.Values.ToList();
 
-            var targetCharacter = user.GetCharacterBySerialNumber(req.Csn);
+            var targetCharacter = user.GetCharacterBySerialNumber(req.Csn) ?? throw new NullReferenceException();
 
             // Find the element with the current csn from the request
             var currentCharacter = fullchardata.FirstOrDefault(c => c.id == targetCharacter.Tid) ?? throw new NullReferenceException();
diff --git a/EpinelPS/LobbyServer/Gacha/ExecuteEventGacha.cs b/EpinelPS/LobbyServer/Gacha/ExecuteEventGacha.cs
index b4e3ffb..41c9edf 100644
--- a/EpinelPS/LobbyServer/Gacha/ExecuteEventGacha.cs
+++ b/EpinelPS/LobbyServer/Gacha/ExecuteEventGacha.cs
@@ -207,7 +207,11 @@ namespace EpinelPS.LobbyServer.Gacha
             }
 
             // Fallback to a random R character if somehow no SSR characters are left after exclusion
-            return availableRCharacters.Any() ? availableRCharacters[random.Next(availableRCharacters.Count)] : null;
+            if (!availableRCharacters.Any())
+            {
+                throw new InvalidOperationException("No available characters found for gacha pull");
+            }
+            return availableRCharacters[random.Next(availableRCharacters.Count)];
         }
     }
 }
\ No newline at end of file
diff --git a/EpinelPS/Program.cs b/EpinelPS/Program.cs
index 12cff9e..8271088 100644
--- a/EpinelPS/Program.cs
+++ b/EpinelPS/Program.cs
@@ -39,7 +39,7 @@ namespace EpinelPS
                     {
                         SslProtocols = System.Security.Authentication.SslProtocols.Tls12,
                         ClientCertificateMode = ClientCertificateMode.AllowCertificate,
-                        ServerCertificate = new X509Certificate2(AppDomain.CurrentDomain.BaseDirectory + @"site.pfx")
+                        ServerCertificate = new X509Certificate2(File.ReadAllBytes(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "site.pfx")))
                     };
 
                     builder.WebHost.ConfigureKestrel(serverOptions =>
diff --git a/EpinelPS/Utils/ColorConsoleLoggerProvider.cs b/EpinelPS/Utils/ColorConsoleLoggerProvider.cs
index 3a15d7b..2b0b9b9 100644
--- a/EpinelPS/Utils/ColorConsoleLoggerProvider.cs
+++ b/EpinelPS/Utils/ColorConsoleLoggerProvider.cs
@@ -21,7 +21,7 @@ namespace EpinelPS.Utils
         }
 
         public ILogger CreateLogger(string categoryName) =>
-            _loggers.GetOrAdd(categoryName, name => new ColorConsoleLogger(name, GetCurrentConfig));
+            _loggers.GetOrAdd(categoryName, _ => new ColorConsoleLogger(GetCurrentConfig));
 
         private ColorConsoleLoggerConfiguration GetCurrentConfig() => _currentConfig;
 
@@ -40,7 +40,7 @@ namespace EpinelPS.Utils
             [LogLevel.Information] = ConsoleColor.Green
         };
     }
-    public sealed class ColorConsoleLogger(string name, Func<ColorConsoleLoggerConfiguration> getCurrentConfig) : ILogger
+    public sealed class ColorConsoleLogger(Func<ColorConsoleLoggerConfiguration> getCurrentConfig) : ILogger
     {
         public IDisposable? BeginScope<TState>(TState state) where TState : notnull => default!;
 
diff --git a/ServerSelector/ServerSelector.csproj b/ServerSelector/ServerSelector.csproj
index 2fd1568..959916d 100644
--- a/ServerSelector/ServerSelector.csproj
+++ b/ServerSelector/ServerSelector.csproj
@@ -2,6 +2,7 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+		<NoWarn>$(NoWarn);SYSLIB0057</NoWarn>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>