Null Reference Error With Scriptable Objects

Custom Scriptable Object

  public class GameDataScriptableObject<T>: ScriptableObject,ICSVReader where T : class
     {
     
     public T[] mData;
     public T GetFromId(uint ID)
     {
     for (int i = 0; i < mData.Length; ++i)
     {
     var data = mData as IReturnID;
     if (data.GetID() == ID)
     return mData;
     }
     
     return default(T);
     }
     public GameDataScriptableObject()
     {
     
     }
     public GameDataScriptableObject(T obj)
     {
     
     }
     public void ParseCSV(string data)
     {
     var engine = new FileHelperEngine<T>();
     mData = engine.ReadString(data);
     }
     
     }

 Interface
 public interface ICSVReader
     {
     void ParseCSV(string data);
     }

Helper Function

  public static UnityEngine.Object CreateAsset<T>(string assetFileName) where T : ScriptableObject
     {
         
         var scriptableObject = ScriptableObject.CreateInstance<T>();
         TextAsset csvAsset = UnityEditor.AssetDatabase.LoadAssetAtPath<TextAsset>(TextAssetDataLocation + assetFileName + InputAssetFileExtension);
 if (scriptableObject == null)
             Debug.Log("NULL");
         var parser = scriptableObject as ICSVReader;
         parser.ParseCSV(csvAsset.text);      
         UnityEditor.AssetDatabase.CreateAsset(scriptableObject, AssetDataBaseLocation + assetFileName + AssetFileExtension);
         UnityEditor.AssetDatabase.SaveAssets();
         return scriptableObject;
     }
  

i have written a helper function to create an ScriptableObject from a csv file My problem is.... whenever i call

 CreateAsset<GameDataScriptableObject<EachSkill>>("EnemyData"); // EnemyData is the name of the text file and eachskill is a data structure

i get an error !!!! here "parser.ParseCSV(csvAsset.text);" - > Debug Prints "NULL" which means ScriptableObject.CreateInstance failed... how ever if i have a class like this

 public class EnemyData : GameDataScriptableObject<EachSkill>
 {
 }

and if i call the same function again like this

 CreateAsset<EnemyData >("EnemyData");

It Works Perfectly!!!!!!

What am i doing wrong here? and why is the code behaving like this.? Any sort of help would be really helpful!