Fix bundle backtest grain

src/Managing.Api/Controllers/AccountController.cs

@@ -49,7 +49,7 @@ namespace Managing.Api.Controllers
         public async Task<ActionResult<IEnumerable<Account>>> GetAccounts()
         {
             var user = await GetUser();
-            return Ok(_AccountService.GetAccountsByUser(user, true));
+            return Ok(await _AccountService.GetAccountsByUserAsync(user, true));
         }
 
         /// <summary>