The mod Rampant, fixed (1.8.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event RampantFixed::on_tick (ID 0)
invalid key to 'next'
stack traceback:
[C]: in function 'next'
RampantFixed/libs/MapProcessor.lua:681: in function 'processGrowingBases'
RampantFixed/control.lua:1242: in function <RampantFixed/control.lua:1176>

https://drive.google.com/file/d/1_hpu-Q22TzQFxh_6kJVmRwsVIGbBwpQn/view?usp=sharing my save file happend around 26.46 minute.

Downloaded the save. The error has been reproduced
Unfortunately, I don't see anything to recommend before I make a new release.
I found and fixed the bug, but the rest of the release is in a semi-finished state. Expected release date ~January 1-3

p.s. Yes, occasionally small bases located close to the player grow. These places are marked with a green cloud
For example, in the save you have a base growing at north of the buildings on a planet with “vitamelange”

Will this crash all the time or its random? If I disable spread for a while will I avoid this crash?

Welp it just happens no matter what...

Also the hell is going on today its 3rd bug in a day. Related to different mods too.

I played for hours and there was no error.
But, according to what I fixed, it should have been there permanently

You can't fix it. There the "universe" list of growing bases and on a specific planet began to desynchronize

I cant force it to sync?

I guess no factorio for me. Welp had things to do.

Yeah even disabling spread still crashes the game.

Release ready