Check if installing a VPN client will allow you to start Escape from Tarkov. Note:Keep in mind that using a VPN is not a proper fix since it will likely slow down your connection. If using a VPN eliminates the 106015 when launching Escape from Tarkov, the next thing you should do is ...
Are the servers down? Just getting this error, which normally you get when you can't connect to the servers. Before that error I got kicked out of the game.