it seems you are looking for filenames in the results folder, which contains both words "effect" and "interactions".
But if I check the directory where you have the results, I only see file names that contains
intrinsic_effects or
env_effects or
local_effects.
If you check this two lines of the plotting script: https://github.com/damienArnol/svca/blob/e2fa3d0758202491055e418376caf4ea9418752d/SVCA/svca/plot_scripts/visu_signatures_functions.R#L26-L27
it seems you are looking for filenames in the results folder, which contains both words "effect" and "interactions". But if I check the directory where you have the results, I only see file names that contains intrinsic_effects or env_effects or local_effects.
maybe it is a typo interaction --> intrinsic?