The Blocked Plug-In error message is due to having an older version of Adobe Flash Player.
Adobe Flash Player was discontinued in 2020.
You should verify you have the current release of your emWave2 or emWave Pro software.
Go to www.heartmath.com//support/downloads and get the latest version of the emWave programs.
Use the installer file to install the latest version on your computer.
It may be installed over your current installation, directly from your Downloads folder.