As you know due to Flash dying away next year we are all slowly having issues with flash games and material as browsers slowly start to adapt. I can't say for other browsers but here are two I do know.
While I am not a fan of Internet explorer the games seem to still work fine in IE. I know recently I had issues with TAP TAP WEST where the page itself was not loading but the individual responding suggested I try another browser and IE worked fine. Last they fixed the FF issue.
My main browser is Firefox and as of 69 they no longer will remember the setting to allow flash and remember your setting choice. So with FF I have found you have to click the grey game area when the box shows up and then this will pop up with an allow/disallow bow which will let you run the games. From my understanding this will last for the time you are on your computer once you shut down my understanding is you will have to repeat this the next time you try and play the game or what have you. But it will still run flash items just won't let you remember the setting like it use to. I know others have said this has worked for them to resolve the ne flash issues due to the upcoming changes.
Haven't tested this out, but most new games are made by Unity and other engines nowadays. The issue with flash dying away will be having to play older games that are made by flash. I'm pretty sure the staff at armorgames and other flash based sites are looking for every option to keep these things running.
But every bit helps so cheers for the suggestion
EDIT:
there is already a topic about this here
https://armorgames.com/community/thread/12671623/flash-player-closing-in-2020
But I just noticed you already posted in that one.
Right but alot of those threads were questions with solutions buried reason I posted this one as more a solution in this so maybe folks will find it easier then being buried in a question. Hence the title solution at least for some as I know one I suggested this too found it was exactly what they needed as some users don't know they just need to click the game to get the approval panel to pop up in their browser!