Since Adobe itself has discontinued this product, there are no official fixes to the issue. However, there are some solutions you can implement to unblock Flash Player on Chrome, Edge, Firefox, Opera, ...

Adobe Flash Player is the high performance, lightweight, highly expressive client runtime that delivers powerful and consistent user experiences across major operating systems, browsers, mobile phones ...

A common scam web site is one that states "Flash Player is out of date" and then prompts you to download Flash Player from the site. This is a scam and the offered program is not actually Adobe Flash.