Plugin blocked in preview

 Answer:

It shows plugin blocked because our softwares preview in flash player, and the flash player installed in your system is an outdated version. 

You need to update flash player to the latest version. Please firstly download the official uninstall tool to remove the old version. 

Download Link: 

For Windows: https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html

For Mac: https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html 

Then download and install the latest flash player for your corresponding system. 

Download Link: http://get.adobe.com/flashplayer/otherversions/

Even if you have completed the installation of new version, it will not work properly because flash player had disabled local-with-filesystem access by default since version 23, which means you cannot view local flash files directly. Please change your flash settings refer to http://www.easypano.com/panorama-photography/local-flash-virtual-tour-cannot-load-in-browsers.html in order to run preview properly.