Help with Texture2D's from a string name/path.

Hello im making a string based inventory(No its not list so don't tell me I should use one), but anyway Im getting errors in my code such as this, Cannot implicitly convert type string' to UnityEngine.Texture2D'. So can anyone tell me how to fix this error. Thanks.

This is my code:

 using UnityEngine;
 using System.Collections;
 
 public class Inventory : MonoBehaviour {
     [HideInInspector]
     public string Item1,Item2,Item3,Item4,Item5,Item6,Item7,Item8,Item9,Item10;
     [HideInInspector]
     public string Item11,Item12,Item13,Item14,Item15,Item16,Item17,Item18,Item19,Item20;
     [HideInInspector]
     public string Item21,Item22,Item23,Item24,Item25,Item26,Item27,Item28,Item29,Item30;
     [HideInInspector]
     public string Item31,Item32,Item33,Item34,Item35,Item36,Item37,Item38,Item39,Item40;
     [HideInInspector]
     public string Item41,Item42,Item43,Item44,Item45,Item46,Item47,Item48,Item49,Item50;
     
     [HideInInspector]
     public Texture2D CItem1,CItem2,CItem3,CItem4,CItem5,CItem6,CItem7,CItem8,CItem9,CItem10;
     [HideInInspector]
     public Texture2D CItem11,CItem12,CItem13,CItem14,CItem15,CItem16,CItem17,CItem18,CItem19,CItem20;
     [HideInInspector]
     public Texture2D CItem21,CItem22,CItem23,CItem24,CItem25,CItem26,CItem27,CItem28,CItem29,CItem30;
     [HideInInspector]
     public Texture2D CItem31,CItem32,CItem33,CItem34,CItem35,CItem36,CItem37,CItem38,CItem39,CItem40;
     [HideInInspector]
     public Texture2D CItem41,CItem42,CItem43,CItem44,CItem45,CItem46,CItem47,CItem48,CItem49,CItem50;
     
     public Rect Inventory_Rect = new Rect(20, 20, 200, 350);
     
     public Vector3 Scroll = Vector2.zero;
     
     public string IconPath = "Icons/Items/Weapons/";
     
     void Start () {
     
         Item1 = PlayerPrefs.GetString("Item1");
         Item2 = PlayerPrefs.GetString("Item2");
         Item3 = PlayerPrefs.GetString("Item3");    
         Item4 = PlayerPrefs.GetString("Item4");    
         Item5 = PlayerPrefs.GetString("Item5");    
         Item6 = PlayerPrefs.GetString("Item6");    
         Item7 = PlayerPrefs.GetString("Item7");    
         Item8 = PlayerPrefs.GetString("Item8");    
         Item9 = PlayerPrefs.GetString("Item9");    
         Item10 = PlayerPrefs.GetString("Item10");
         Item11 = PlayerPrefs.GetString("Item11");
         Item12 = PlayerPrefs.GetString("Item12");
         Item13 = PlayerPrefs.GetString("Item13");    
         Item14 = PlayerPrefs.GetString("Item14");    
         Item15 = PlayerPrefs.GetString("Item15");    
         Item16 = PlayerPrefs.GetString("Item16");    
         Item17 = PlayerPrefs.GetString("Item17");    
         Item18 = PlayerPrefs.GetString("Item18");    
         Item19 = PlayerPrefs.GetString("Item19");    
         Item20 = PlayerPrefs.GetString("Item20");
         Item21 = PlayerPrefs.GetString("Item21");
         Item22 = PlayerPrefs.GetString("Item22");
         Item23 = PlayerPrefs.GetString("Item23");    
         Item24 = PlayerPrefs.GetString("Item24");    
         Item25 = PlayerPrefs.GetString("Item25");    
         Item26 = PlayerPrefs.GetString("Item26");    
         Item27 = PlayerPrefs.GetString("Item27");    
         Item28 = PlayerPrefs.GetString("Item28");    
         Item29 = PlayerPrefs.GetString("Item29");
         Item30 = PlayerPrefs.GetString("Item30");    
         Item31 = PlayerPrefs.GetString("Item31");
         Item32 = PlayerPrefs.GetString("Item32");
         Item33 = PlayerPrefs.GetString("Item33");    
         Item34 = PlayerPrefs.GetString("Item34");    
         Item35 = PlayerPrefs.GetString("Item35");    
         Item36 = PlayerPrefs.GetString("Item36");    
         Item37 = PlayerPrefs.GetString("Item37");    
         Item38 = PlayerPrefs.GetString("Item38");    
         Item39 = PlayerPrefs.GetString("Item39");    
         Item40 = PlayerPrefs.GetString("Item40");
         Item41 = PlayerPrefs.GetString("Item41");
         Item42 = PlayerPrefs.GetString("Item42");
         Item43 = PlayerPrefs.GetString("Item43");    
         Item44 = PlayerPrefs.GetString("Item44");    
         Item45 = PlayerPrefs.GetString("Item45");    
         Item46 = PlayerPrefs.GetString("Item46");    
         Item47 = PlayerPrefs.GetString("Item47");    
         Item48 = PlayerPrefs.GetString("Item48");    
         Item49 = PlayerPrefs.GetString("Item49");    
         Item50 = PlayerPrefs.GetString("Item50");    
         
         
         
     }
     
     void Update () {
         CItem4 = Resources.Load(IconPath) as Texture2D;
         
         CItem1 = IconPath + Item1;
         
     }
     
     void OnGUI(){
         Inventory_Rect = GUI.Window(0, Inventory_Rect, InventoryHUD, "Inventory");
     }
     
     private void InventoryHUD(int windowID){
         
           Scroll = GUILayout.BeginScrollView(Scroll);
         
         GUILayout.BeginHorizontal();
         
         if(GUI.Button(new Rect(5,10,40,40),CItem1)){}
         if(GUI.Button(new Rect(50,10,40,40),CItem2)){}
         if(GUI.Button(new Rect(95,10,40,40),CItem3)){}
         if(GUI.Button(new Rect(140,10,40,40),CItem4)){}
         
         GUILayout.EndHorizontal();
         
         GUILayout.EndScrollView();
         
         GUI.DragWindow();
     }
     
     public void AddItem(){
         
     }
 }