AmneziaVPN doesn't start on Linux
AmneziaVPN only supports a limited set of Linux distributions. Make sure yours is on the supported list and install the required dependencies as described in the Linux installation guide.
If the application file is not executable, run the following command in the terminal, replacing * with your app version, then try launching again:
sudo chmod u+x AmneziaVPN_Linux_*
If your system does not use systemd, see this guide.