diff --git a/KeeTrayTOTP/Libraries/TOTPProvider.cs b/KeeTrayTOTP/Libraries/TOTPProvider.cs
index de26d5e..211174c 100644
--- a/KeeTrayTOTP/Libraries/TOTPProvider.cs
+++ b/KeeTrayTOTP/Libraries/TOTPProvider.cs
@@ -68,7 +68,7 @@ public int Length
         /// <summary>
         /// Instantiate a new TOTP_Generator.
         /// </summary>
-        public TOTPProvider(string[] settings, ref TimeCorrectionCollection tcc)
+        public TOTPProvider(string[] settings, TimeCorrectionCollection tcc)
         {
             this._duration = Convert.ToInt16(settings[0]);
 
@@ -138,26 +138,6 @@ public long Counter
             }
         }
 
-        /// <summary>
-        /// Converts an unsigned integer to binary data.
-        /// </summary>
-        /// <param name="n">Unsigned Integer.</param>
-        /// <returns>Binary data.</returns>
-        private byte[] GetBytes(ulong n)
-        {
-            byte[] b = new byte[8];
-            b[0] = (byte)(n >> 56);
-            b[1] = (byte)(n >> 48);
-            b[2] = (byte)(n >> 40);
-            b[3] = (byte)(n >> 32);
-            b[4] = (byte)(n >> 24);
-            b[5] = (byte)(n >> 16);
-            b[6] = (byte)(n >> 8);
-            b[7] = (byte)n;
-
-            return b;
-        }
-
         /// <summary>
         /// Generate a TOTP using provided binary data.
         /// </summary>
diff --git a/KeeTrayTOTP/TrayTOTP_ColumnProvider.cs b/KeeTrayTOTP/TrayTOTP_ColumnProvider.cs
index 74ce4e9..435fa3e 100644
--- a/KeeTrayTOTP/TrayTOTP_ColumnProvider.cs
+++ b/KeeTrayTOTP/TrayTOTP_ColumnProvider.cs
@@ -79,7 +79,7 @@ private static string GetInnerValueStatus(PwEntry entry)
         private string GetInnerValueCode(PwEntry entry)
         {
             string[] settings = _plugin.SettingsGet(entry);
-            var totpGenerator = new TOTPProvider(settings, ref _plugin.TimeCorrections);
+            var totpGenerator = new TOTPProvider(settings, _plugin.TimeCorrections);
             return totpGenerator.GenerateByByte(Base32.Decode(_plugin.SeedGet(entry).ReadString().ExtWithoutSpaces())) + (_plugin.PluginHost.CustomConfig.GetBool(KeeTrayTOTPExt.setname_bool_TOTPColumnTimer_Visible, true) ? totpGenerator.Timer.ToString().ExtWithParenthesis().ExtWithSpaceBefore() : string.Empty);
         }
 
diff --git a/KeeTrayTOTP/TrayTOTP_Plugin.cs b/KeeTrayTOTP/TrayTOTP_Plugin.cs
index 5bd6e03..0788644 100644
--- a/KeeTrayTOTP/TrayTOTP_Plugin.cs
+++ b/KeeTrayTOTP/TrayTOTP_Plugin.cs
@@ -624,7 +624,7 @@ private void SprEngine_FilterCompile(object sender, SprEventArgs e)
                     {
                         string[] settings = SettingsGet(e.Context.Entry);
 
-                        TOTPProvider totpGenerator = new TOTPProvider(settings, ref this.TimeCorrections);
+                        TOTPProvider totpGenerator = new TOTPProvider(settings, this.TimeCorrections);
 
                         string invalidCharacters;
 
@@ -841,7 +841,7 @@ internal void TOTPCopyToClipboard(PwEntry pe)
                 {
                     string[] settings = SettingsGet(pe);
 
-                    TOTPProvider totpGenerator = new TOTPProvider(settings, ref this.TimeCorrections);
+                    TOTPProvider totpGenerator = new TOTPProvider(settings, this.TimeCorrections);
 
                     string invalidCharacters;
                     if (SeedValidate(pe, out invalidCharacters))