Guild Wars 2

Hello everyone. I’m stuck in zone 2 of world 2, at the checkpoint where you have to ring the bell to lower the bridge, leading to a dojo with 4 open doors, all of which are trapped. I have no idea where I’m supposed to be going. Anyone care to shed some light on this?

Here’s a screen of the area I’m talking about if that helps.

2nd one from the left isn’t trapped

You can see al the traped doors having a small dart shooting device on the side of them. you need to push the big cube to a blocked corridor and jump over the dartshots.