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, ...
When Google released Android 4.1 Jelly Bean in 2012, Flash support found itself on the cutting room floor, no longer downloadable in the Google Play Store and dropped from the mobile platform.
Why and when will Adobe Flash Player become outdated? The open standards HTML5, WebGL and WebAssembly provide much more features than Flash Player and also have much better protection against viruses ...