If it is at all possible needs update to new version of game.

To get it working with 1.1.78

unzip the mod
edit the "ammo-loader_1.1.14\prototypes\entity.lua" file line 50
instead of:
stack_size_bonus = 5000,
make it:
stack_size_bonus = 255,
and you good to go.

Thanks MrGoodbits

I never worked with that file extension.
So it took me a little bit of investigated work to figure out how to save in that file extension.

But with that said, file has been edited and seems to work just fine.
Mod loads when game loads up.

No more error messages.

Thanks for all your assistance and I hope you have a good day.

:-)

As of today (4/12/2023), this is required for the main branch that was pushed (1.1.80).