i got this message when trying to use the mod
Can you help please?

The mod Simple Train Fuel Stop (1.18.5) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event simple_train_fuel_stop::on_tick (ID 0)
simple_train_fuel_stop/script/trains.lua:38: attempt to compare number with table
stack traceback:
simple_train_fuel_stop/script/trains.lua:38: in function 'CheckTrainFuel'
simple_train_fuel_stop/script/trains.lua:147: in function 'CheckTrains'
simple_train_fuel_stop/script/trains.lua:159: in function 'func'
simple_train_fuel_stop/control.lua:41: in function <simple_train_fuel_stop/control.lua:39>

when do you get this error message?
When you start a new map, load an existing save or something else?
Which game version do you use?

i use the newest game version 18.24
i tried loading it in to save
i do use color changing trains, might this be an issue?
game starts, than few seconds later it just kicks me

Ok, so i have since removed the train coloring mods, and now i think error is different:
posting a screenshot
http://prntscr.com/shltdg

ty for all the info.
A newly implemented feature seems to have some initialization problem. A need to have a deeper look into that. For now I'm going to give out a patch that should prevent this error.
I can't test it currently, so it would be a big help, if you could tell me if everything is working fine

Ok, it is working now, i mean did not crash the game on load, i will try it and let you know how it works
(dont have red circuits to make it) (please consider making it a green circuits, so we can start using it before oil, as most train systems get implemented before oil

that's good to hear, thank you!
Also the green/red circuit thing is something I've never really thought of! I developed this mod while playing in save that is fairly advanced, so the resources never were a big hassle to deal with. But your point is true, after-oil might be really a bit late to have this.
Since everything needs testing, im going to change it to green right away. I'll see how it's going and if I like it, I'm going to keep it that way!

I do think as well that making it require green circuits would be better for an earlier availability :)

ohhhh, if its also the opinion of Hyperbar00, it really has to be a good decision to change it ;)
I wait for for some feedback on the error for xpozec here, after that I'll get these changes done for the 0.17 version

so played few hours now, no problems, no errors, works as intended, thank you for the prompt response and fast fix

glad to hear that :)

Any chance we can get that patch for 0.17?
I'm getting it on 17.79, with no other train mods.

Oh sure!
Sry I kinda forgot the 0.17 version, it's online now