(Localization System) Change Language Problem

Hello!
I made a localization system according to the lesson from Game Dev Guide. However, I ran into the problem of creating a button that changes the language during the game.
I created an event in which the current language is checked and changed, but for the language to change in the game in real time, I need to execute an event from another script, at this point I get an error:

Assets\Scripts\LocalisationSystem.cs(121,9): error CS0120: An object reference is required for the non-static field, method, or property 'TextLocaliserUI.Start()'

 using System;
 using System.IO;
 using System.Linq;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class LocalisationSystem : MonoBehaviour
 {
     public enum Language
     {
         English,
         Russian
     }
      
     public static Language language = Language.English;
 
     private static Dictionary<string, string> localisedEN;
     private static Dictionary<string, string> localisedRU;
 
     public static bool isInit;
     
     public static CSVLoader csvLoader;
 
     public static void Init()
     {
         csvLoader = new CSVLoader();
         csvLoader.LoadCSV();
 
         UpdateDictionaries();
 
         isInit = true;
     }
     
     public static void UpdateDictionaries()
     {
         localisedEN = csvLoader.GetDictionaryValues("en");
         localisedRU = csvLoader.GetDictionaryValues("ru");
     }
 
     public static Dictionary<string, string> GetDictionaryForEditor()
     {
         if(!isInit) { Init(); }
         return localisedEN;
     }
 
     public static string GetLocalisedValue(string key) 
     {
         if(!isInit) { Init(); }
 
         string value = key;
 
         switch(language)
         {
             case Language.English:
             localisedEN.TryGetValue(key, out value);
             break;
             case Language.Russian:
             localisedRU.TryGetValue(key, out value);
             break;
         }
 
         return value;
     }
 
     public static void Add(string key, string value)
     {
         if(value.Contains("\""))
         {
             value.Replace('"', '\"');
         }
 
         if(csvLoader == null)
         {
             csvLoader = new CSVLoader();
         }
 
         csvLoader.LoadCSV();
         csvLoader.Add(key, value);
         csvLoader.LoadCSV();
 
         UpdateDictionaries();
     }
 
     public static void Replace(string key, string value)
     {
         if(value.Contains("\""))
         {
             value.Replace('"', '\"');
         }
 
         if(csvLoader == null)
         {
             csvLoader = new CSVLoader();
         }
 
         csvLoader.LoadCSV();
         csvLoader.Edit(key, value);
         csvLoader.LoadCSV();
 
         UpdateDictionaries();
     }
 
     public static void Remove(string key)
     {
         if(csvLoader == null)
         {
             csvLoader = new CSVLoader();
         }
 
         csvLoader.LoadCSV();
         csvLoader.Remove(key);
         csvLoader.LoadCSV();
 
         UpdateDictionaries();
     }
 
     public static void SetLanguage(Language newLanguage)
     {
         language = newLanguage;
         TextLocaliserUI.Start(); // Error
     }
 
     public void ChangeLang()
     {
         if(language == Language.English)
         {
             Debug.Log("Language is set to " + language);
             LocalisationSystem.SetLanguage(LocalisationSystem.Language.Russian);
         }
         else
         {
             Debug.Log("Language is set to " + language);
             LocalisationSystem.SetLanguage(LocalisationSystem.Language.English);
         }
     }
 }

TextLocaliserUI.cs

 using System.IO;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using TMPro;
 
 [RequireComponent(typeof(TextMeshProUGUI))]
 public class TextLocaliserUI : MonoBehaviour
 {
     TextMeshProUGUI textField;
 
     public LocalisedString localisedString;
 
     public void Start()
     {
         textField = GetComponent<TextMeshProUGUI>();
         textField.text = localisedString.value;
     }
 }

LocalisedString.cs

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 [System.Serializable]
 public struct LocalisedString
 {
     public string key;
 
     public LocalisedString(string key)
     {
         this.key = key;
     }
 
     public string value
     {
         get
         {
             return LocalisationSystem.GetLocalisedValue(key);
         }
     }
 
     public static implicit operator LocalisedString(string key)
     {
         return new LocalisedString(key);
     }
 }