diff --git a/插件库/Lskj.PubAccraditation/FrmAccraditation.cs b/插件库/Lskj.PubAccraditation/FrmAccraditation.cs
index d8f1105..0a46dbd 100644
--- a/插件库/Lskj.PubAccraditation/FrmAccraditation.cs
+++ b/插件库/Lskj.PubAccraditation/FrmAccraditation.cs
@@ -1715,6 +1715,7 @@ namespace Lskj.PubAccraditation
                 foreach (string item in billFields.Split(','))
                 {
                     BaseUserControl control = this.ControlObj.FindControl(item);
+                    if (control == null) continue;
                     if (string.IsNullOrWhiteSpace(control.Model.PrivilegeOper))
                     {
                         //没有人员权限，转成可编辑