Failed to load mods: LinkedChestAndPipe/prototypes/final-base.lua:83: attempt to index field 'loader' (a nil value)
stack traceback:
LinkedChestAndPipe/prototypes/final-base.lua:83: in main chunk
[C]: in function 'require'
LinkedChestAndPipe/data-final-fixes.lua:2: in main chunk

Removing the vanilla loader mod fixed it but can you check what error is happening

Why did this error occur? The game origin loader recipe disappeared? Can I have you save?

It was while just loading up my game, here is the other mod that caused it https://mods.factorio.com/mod/vanilla-loaders-hd

I tried it with the MOD vanilla-loaders-hd, It won't make any errors in game version 2.0.15 or SA version 2.0.15. Do you have any more error messages? or other MODs?

I am not sure, but it seems to be working for now so I guess if it pops up again I will figure it out