For auto restart game's conditions:
1.Battle.net.exe should be running (in background or minimized).
2.In Battle.net.exe's application, games of Hearthstone panel should be visible, and the big [PLAY] button of hearthstone should be visible too.
While game is running and bot is botting, try to close the game, and see the bot can restart the game or not, if bot fails to restart the game, check this thread:
http://www.hearthranger....reconnect-not-work.aspx