Really really need help

Hi im making a map but after the last update my latest version does not work.
i put in my last version save and the map loads up perfectly fine but my most up to date just eats all my ram witch is 64GB and my hard drive is at 100%

all the other maps work fine no problems at all. the map is the only mod installed i dont have beammp.

If someone with some sort of file nollage with the map files please download the map and see if you can work it out. ive been at it all day no youtube videos or forums have helped at all.

i would just carry on from the last version but i last backed it up 3 months ago so if anyone is able to fix the file it would be a good sign of relief

Thanks

https://drive.google.com/file/d/1fKXEKoGTwnKrqNO3hfOyyF3c2svngB0p/view?usp=sharing

 

i thought about reverting the game version but cant seem to work out where to do it. because in steam betas theirs no 0.25