Cannot place my files on mapping network drives with Appliance 5220

Hello

      I want to upgrade my Appliance 5220 to lastet version (2.6.0.1) but I got a problem with \install path.

      I opened CIFS share by the step Main_Menu > Manage > Software > Share Open and can map //<Appliance hostname>/installpath with my PC but when I placed my patch files from local into its, it has an error like in the picture.