diff --git a/DataAccess/DTOs/Converters/HelperMaterialFromDTOConvertStrategy.cs b/DataAccess/DTOs/Converters/HelperMaterialFromDTOConvertStrategy.cs
index dc5f73c..cf20515 100644
--- a/DataAccess/DTOs/Converters/HelperMaterialFromDTOConvertStrategy.cs
+++ b/DataAccess/DTOs/Converters/HelperMaterialFromDTOConvertStrategy.cs
@@ -73,8 +73,8 @@ namespace DataAccess.DTOs
         private IHelperMaterial GetElasticMaterial(ElasticMaterialDTO source)
         {
             TraceLogger?.AddMessage(MaterialIs + "Elastic material", TraceLogStatuses.Service);
-            reinforcementConvertStrategy.ReferenceDictionary = ReferenceDictionary;
-            reinforcementConvertStrategy.TraceLogger = TraceLogger;
+            elasticConvertStrategy.ReferenceDictionary = ReferenceDictionary;
+            elasticConvertStrategy.TraceLogger = TraceLogger;
             var newItem = elasticConvertStrategy.Convert(source);
             safetyFactorUpdateStrategy.Update(newItem, source);
             return newItem;
@@ -83,8 +83,8 @@ namespace DataAccess.DTOs
         private IHelperMaterial GetFRMaterial(FRMaterialDTO source)
         {
             TraceLogger?.AddMessage(MaterialIs + "Fiber reinforcement material", TraceLogStatuses.Service);
-            reinforcementConvertStrategy.ReferenceDictionary = ReferenceDictionary;
-            reinforcementConvertStrategy.TraceLogger = TraceLogger;
+            frConvertStrategy.ReferenceDictionary = ReferenceDictionary;
+            frConvertStrategy.TraceLogger = TraceLogger;
             var newItem = frConvertStrategy.Convert(source);
             safetyFactorUpdateStrategy.Update(newItem, source);
             return newItem;
diff --git a/StructureHelperLogics/Models/Materials/FRMaterials/FRMaterial.cs b/StructureHelperLogics/Models/Materials/FRMaterials/FRMaterial.cs
index 4ad45aa..8e284ed 100644
--- a/StructureHelperLogics/Models/Materials/FRMaterials/FRMaterial.cs
+++ b/StructureHelperLogics/Models/Materials/FRMaterials/FRMaterial.cs
@@ -29,7 +29,7 @@ namespace StructureHelperLogics.Models.Materials
 
         public FRMaterial(MaterialTypes materialType, Guid id)
         {
-            if (materialType != MaterialTypes.CarbonFiber ||
+            if (materialType != MaterialTypes.CarbonFiber &
                     materialType != MaterialTypes.GlassFiber)
             {
                 throw new StructureHelperException(ErrorStrings.DataIsInCorrect + $": Material type {materialType} is not right");