Data not loading after reloading page in Blazor

I have a Razor page that needs to show my transactions and load it from database but.When I visit the page for the first time, everything works fine, but when I refresh the page, all the data stops loading.I'm a beginner and I don't know what it could be.Here is my code

@page "/home"@rendermode InteractiveServer@using FinanceTracker.Components.Data@using FinanceTracker.Services@inject UserService UserService@inject TransactionService TransactionService@inject CustomAuthStateProvider AuthStateProvider@inject NavigationManager Navigation<PageTitle>Dashboard</PageTitle><header class="header"><h1 class="page-title">Dashboard</h1><div class="logout"><button @onclick="Logout" class="logout-btn">Logout</button></div></header><main class="main">    @if (transactions != null)    {<div class="transaction-balance"><p class="transaction-balance-text">Cash</p><p class="transaction-balance-amount">@GetTotalAmount()</p></div>    }<div class="transaction-list">        @if (transactions != null)        {<h2 class="transaction-heading">Last Transaction</h2>            @foreach (var transaction in transactions)            {<div class="transaction-item"><div class="transaction-item-content">                        @if (transaction.Type == "Receive")                        {<p class="transaction-item-amount green">+@transaction.Amount UAH</p>                        }                        else                        {<p class="transaction-item-amount">@transaction.Amount UAH</p>                        }<p class="transaction-item-description">@transaction.Description</p></div><img @onclick="() => DeleteTransaction(transaction.Id)" class="transaction-item-btn" src="Delete-button.svg.png"/></div>            }        }        else        {<p>Loading...</p>        }</div><button class="btn btn-primary" @onclick="ShowModal">Add Transaction</button></main><AddTransactionModal Visible="@showModal" />@code{    private List<Transaction> transactions;     public bool showModal = false;    protected override async Task OnInitializedAsync()    {        var authState = await AuthStateProvider.GetAuthenticationStateAsync();        var login = authState.User.Identity.Name;        if (login != null)        {            var user = await UserService.GetUserByLogin(login);            if (user != null)            {                var userId = user.Id;                await LoadTransactions(userId);            }        }    }    private async Task LoadTransactions(int userId)    {        transactions = await TransactionService.GetTransactionsByUserId(userId);    }

I tried to debug my code, but I didn't see anything that could help me