Sir its me who asked for account help before.
Thank you so much sir 
. I got my account back. But the Facebook button vk.com is showing disconnected, So should I connect it again or leave it. (If I leave it then will I get my account back again if it’s deleted).
The Facebook button will be activated when you log in to your vk account. Disconnecting it during the game will not cause any problem for registering your game.