Csharp: FreeTextbox editor control runtime error: & amp; #39; FTB_ResizeGalleryAr

Ftb. imagegallery. aspx:

 <form id="Form1" runat="server" enctype="multipart/form-data">      <FTB:ImageGallery id="ImageGallery1"      JavaScriptLocation="InternalResource"      UtilityImagesLocation="InternalResource"SupportFolder="~/aspnet_client/FreeTextBox/"AllowImageDelete="true" AllowImageUpload="true" AllowDirectoryCreate="true" AllowDirectoryDelete="true" runat="Server" /></form>

Code on the editor page: aspnet_client/FreeTextBox is the editor code folder; Save the image Folder:/saveimages/

        <FTB:FreeTextBox ID="FreeTextBox1" runat="server"  SupportFolder="~/aspnet_client/FreeTextBox/"   ImageGalleryPath="~/saveimages/" language="zh-CN"  toolbarlayout="ParagraphMenu,FontFacesMenu,FontSizesMenu,FontForeColorsMenu,FontForeColorPicker,FontBackColorsMenu,FontBackColorPicker|Bold,Italic,Underline,Strikethrough,Superscript,Subscript,RemoveFormat|JustifyLeft,JustifyRight,JustifyCenter,JustifyFull;BulletedList,NumberedList,Indent,Outdent;CreateLink,Unlink,InsertImage,InsertImageFromGallery|Cut,Copy,Paste,Delete;Undo,Redo,Print,Save|SymbolsMenu,StylesMenu,InsertHtmlMenu|InsertRule,InsertDate,InsertTime|InsertTable,EditTable;InsertTableRowAfter,InsertTableRowBefore,DeleteTableRow;InsertTableColumnAfter,InsertTableColumnBefore,DeleteTableColumn|InsertForm,InsertTextBox,InsertTextArea,InsertRadioButton,InsertCheckBox,InsertDropDownList,InsertButton|InsertDiv,EditStyle,InsertImageFromGallery,Preview,SelectAll,WordClean,NetSpell"                                     Width="500px" Height="260px">        </FTB:FreeTextBox>