Wall blocking the passage to get the items (POE 2 - Down of Hunt)

I can't go through this wall to pick up the items dropped. (POE 2 - Down of Hunt)

It seems like the boss in this map was summoned in a wrong place. The result is that I can't properly pick up the items.

How can they will solve this problem?

https://imgur.com/a/d0nb921
https://imgur.com/NCn3n7w

Got a similar problem yesterday, mob spawn in the swamp and die from aoe there, could not get the loot in the water. was not as big as your loot but could not reach either.