If you are determined to make the specific application work (common with old enterprise software):
Adobe announced the retirement of Flash years in advance due to open web standards like HTML5, WebGL, and WebAssembly maturing.
While seeing the "Flash Player v9.0.246 or higher" error can be frustrating, it is a sign of a healthier, safer internet. By using modern emulation tools like Ruffle, you can bridge the gap between the historic web and modern security standards. this application requires flash player v90246 or higher
Modern browsers (Chrome, Safari, Edge) have completely removed the code necessary to run Flash files (.SWF). How to Fix It (The Modern Way)
Since the global deprecation of Flash, the archival community has stepped up. Projects like (by BlueMaxima) have archived over 100,000 Flash games and animations, each bundled with a customized, patched version of the Flash Player projector that bypasses all version checks. If you are determined to make the specific
Ruffle is an open-source Flash Player emulator written in the Rust programming language. It runs safely inside modern web browsers without the security risks associated with the original Adobe Flash plugin.
Sometimes, late at night, when the city was hush and the old units in the community lab hummed softly, Mira would sit and listen. The Resonance Unit never stopped giving up fragments. It remembered things people had never meant to say aloud. It held confessions and lullabies and warnings. But most of all, it kept a single, precise lesson that had been coded into it by someone trying to be careful: to create something that remembers is also to accept responsibility for what it will remember. Ruffle is an open-source Flash Player emulator written
Resolving the "This Application Requires Flash Player v9.0.246 or Higher" Error