As of the start of the year Adobe Flash player has stopped being supported.
Adobe Flash Player reaches the end of its life – BBC News
JobnetworkBristol and Computer Clubs are making recommendations including to the Good Things Foundation as various Training resources require flash player.
We have tested and recommend updating browsers to use Ruffle at https://ruffle.rs/ .
Ruffle are currently working on support for flash after 2013, as a lot of long standing training websites and application were developed before 2013 Ruffle should be the answer.
Keep learning.