Try this

Internet Browser Try this
Firefox Change pop-up blocker settingsEnable JavaScript, or Clear the cache
If a SWF file stops abruptly, see Flash video stops after a few seconds in Firefox.
Chrome Chrome has a built-in Flash Player. Check if the internal Flash Player is interfering with external Flash Player.  Type about://plugins into address bar. On the Plug-ins page, disable one of the Flash Players. 
You also may have disabled both Flash Players in Chrome. If so, see Re-enable Flash Player on Google Chrome
Safari Go to /Library/Internet Plugins folder and delete WacomSafari.plugin.    
Internet Explorer See Video doesn't display | Internet Explorer | Flash Player.

If you are having an issue with Flash Player on Mac OS, click here.

 Change pop-up blocker settings on Firefox

  • On Windows:
    1. Open Firefox.
    2. From the Tools menu, choose Options.
    3. Deselect Block Popup Windows and click OK.
  • On Mac OS:
    1. Open Firefox.
    2. From the Firefox menu, choose Preferences.
    3. Click the Content button and then deselect Block Pop-up Windows.

 Enable JavaScript on Firefox

  • On Windows:
    1. Open Firefox.
    2. Choose Tools > Options to open a dialog box.
    3. In the row of colored icons at the top, click Content.
    4. Select the Enable JavaScript checkbox.
    5. Click OK.
  • On Mac OS:
    1. Open Firefox.
    2. From the Firefox menu, click Preferences.
    3. In the row of colored icons at the top, click Content.
    4. Select the Enable JavaScript checkbox.
    5. Click OK.

 Clear the cache on Firefox 

  • On Windows and Mac OS:
    1. Open Firefox.
    2. Choose Tools > Clear Recent History.
    3. Click the pop-up menu to the right of Time range to clear and select Everything. Then, click Details and select both Cookies and Cache. Click Clear Now. 

 Enable Flash Player on Google Chrome

You may have disabled Flash Player in Chrome. To re-enable it:

  1. Type about:plugins into the address bar at the top of a Chrome browser window.

  2. Click Details at the upper-right corner of the page.
  3. Find the Flash (or Shockwave Flash) listing on the Plug-ins page and click the corresponding Enable button.
  4. Close all Chrome windows and restart the browser. 

 

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