I searched on chrome for older versions of flash...there are a number of sites so I chose the on for adobe ....and went from there.... some how and i don't remember for the life of me I lucked onto a window that had a list of debuggers for diff o/s I chose the one for windows 8.1 and installed it...and it worked...
P.S. Here is what I did....in search bar type older versions of adobe flash player.
Then click on the one that reads Adobe flash player-downloads
Then click on additional down loads.
scroll down to windows or what ever o/s you have.and then pick the one you need for your system...I chose the windows8.1.X64 debugger..
Worked for me...
Good luck.
J