Adobe Flash Player Actionscript Error

I use a Gateway Laptop and have Windows 7 Pro, does anyone know the fix to this?

Adobe Flash Player                                X

An ActionScript error has occurred:

TypeError: Error #1009: Cannot access a property or method of a null object reference.

  at flash.external::ExternalInterface$/_callIn()

  at Function/<anonymous>()

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This is the contents of the notification box that repeatedly pops up...

Can anybody point me in the right direction to rectify this issue, please? Jerry Thomas