Specific and constant gamecrash while running only the "Haunted Mansion" map

I have been running Elder Haunted Mansions for the last 5 days, and i came upon a specific gamecrash i get whenever i am in there, always at the exact same place.



In Haunted Mansion, there are 2 small outside areas.

One of them is where the Arena to the boss is, the other one is where the crash occurs (never anywhere else).

When I go there, i get a massive lagspike that holds on for around 7-10 seconds, sometimes kicking me from the game and sometimes not.



I am 100% sure that the cause is the Sextant Mod that adds "30 additional Barrels", but only when it spawns monsters out of it.
The crashes only happened when that specific Sextant Mod was on my Map.



I have never had problems in this game with my setup, and i play like 500 hours a league, please look into this!

Edit: Also, i have been running only Shaper and Elder influenced Haunted Mansions.
The sample size i have is around 800 maps.