diff --git a/EDILibrary/GenericEDIWriter.cs b/EDILibrary/GenericEDIWriter.cs
index d09f17b..d0f57b0 100644
--- a/EDILibrary/GenericEDIWriter.cs
+++ b/EDILibrary/GenericEDIWriter.cs
@@ -116,7 +116,7 @@ public string FormatDate(string dateString, string format)
     }
     public class GenericEDIWriter
     {
-        public static ScriptHelper helper = new ScriptHelper();
+        public ScriptHelper helper = new ScriptHelper();
         static readonly Regex numericRegex = new Regex("^[0-9]+$", RegexOptions.Compiled);
         public GenericEDIWriter()
         {
diff --git a/EDILibrary/Helper/MappingHelper.cs b/EDILibrary/Helper/MappingHelper.cs
index 91cb3a4..a209b44 100644
--- a/EDILibrary/Helper/MappingHelper.cs
+++ b/EDILibrary/Helper/MappingHelper.cs
@@ -21,8 +21,8 @@ public static string ExecuteMappingsWithTemplates(EdiObject edi, EDIFileInfo fil
                 }
             }
             var writer = new GenericEDIWriter();
-            GenericEDIWriter.helper.useLocalTime = bUseLocalTime;
-            GenericEDIWriter.helper.LocalTimeZone = localZone ?? TimeZoneInfo.Local;
+            writer.helper.useLocalTime = bUseLocalTime;
+            writer.helper.LocalTimeZone = localZone ?? TimeZoneInfo.Local;
             var newEDI = writer.CompileTemplate(createTemplate, edi);
             extMapping.PrepareEDIMapping(newEDI);
             foreach (var map in mappings)
@@ -52,8 +52,8 @@ public static string ExecuteMappings(EdiObject edi, EDIFileInfo fileInfo, List<s
                 }
             }
             var writer = new GenericEDIWriter();
-            GenericEDIWriter.helper.useLocalTime = bUseLocalTime;
-            GenericEDIWriter.helper.LocalTimeZone = localZone ?? TimeZoneInfo.Local;
+            writer.helper.useLocalTime = bUseLocalTime;
+            writer.helper.LocalTimeZone = localZone ?? TimeZoneInfo.Local;
             var newEDI = writer.CompileTemplate(createTemplate, edi);
             extMapping.PrepareEDIMapping(newEDI);
             foreach (var map in mappings)