Hi qsun,

Please download the latest version http://www.cutesoft.net/downloads/folders/21904/download.aspx and try the way below

Open the security config files"\CuteSoft_Client\CuteEditor\Configuration\Security\Default.config" and set the file folder size to -1.

-1 indicates no maximum folder size.

<security name="MaxImageFolderSize">-1</security>
<security name="MaxMediaFolderSize">-1</security>
<security name="MaxFlashFolderSize">-1</security>
<security name="MaxDocumentFolderSize">-1</security>
<security name="MaxTemplateFolderSize">-1</security>