it keeps crashing when I use the blueprint in 0.18.42 :c

oh no, the update didn't fix my problem

I just updated the game and now when I try to use any blueprint, I get this crash error.
Screen Shot 2020-08-03 at 1.15.47 PM.png
the mod that supposedly makes the crash: https://mods.factorio.com/mod/railloader
ctash.mp4
It crashes when I use any blueprint, even if it doesn't have rails.
now I ...

nop, I'm just pressing left mouse and sliding the cursor

lets say I want to place 5 chest one next to the other, normally you let the left mouse press and you slide the cursor to place the chests, but when I do that the chests stores himself into the chests I just put, so the result is that if I have 5 chests, normally I just end with 2 chests placed, and ...

Is this file the log file right?

Is there a way to downgrade my word, Ive been playing in my world version 0.18.14 and I tried playing in 0.18.17, but he game constantly drops the fps in that version(that don't happen in 0.18.14), but now I cant play in 0.18.14 anymore because it says "Map version 0.18.17-0 can't be loaded because ...