C# '中的服务器错误/'；应用System.Security.SecurityException:该程序集不允许部分受信任的调用方

在服务器上部署时，我在某些页面上遇到此错误

我的应用程序托管在专用服务器上，而不是共享服务器上

我不确定如何修复此错误。 我读过StackOverflow和asp.net论坛网站上的一些帖子

在我的cs文件中

using System;
using System.Collections.Generic;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.Web.Security;
using com.paypal.sdk.services;
using com.paypal.sdk.profiles;
using com.paypal.sdk.util;
using System.Configuration;
using System.Web;
using System.Linq;

堆栈跟踪

[SecurityException: That assembly does not allow partially trusted callers.]
   GlaziersCenter.cart.Page_Load(Object sender, EventArgs e) +0
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +91
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8431
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +253
   System.Web.UI.Page.ProcessRequest() +78
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.cart_aspx.ProcessRequest(HttpContext context) in App_Web_sa5qpq1w.5.cs:0
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

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您很可能需要联系托管服务以更改信任级别。这是哪个PayPal SDK-

com.PayPal.SDK.services

？PayPal_base.dll-