Guild Wars 2

Hello everyone, how many times the game allow you to do the event at VB, AB, DS, or it doesn’t have the limit?

You can do the events multiple times, but your rewards are limited. You can only get one “Hero” chest per day per account and some (ground) chests won’t open on subsequent successes. Generally, therefore, it’s more efficient to do different metas rather than repeat any. (DS is something of an exception, since you can use more machetes.)