The sims4 corrupted files on mac

I just downloaded Sims4 for the first time and wanted to also download some mods. I came to realize that the game wont load if I have a .package file in my mods. I have tried opening Sims with one .package mod at a time and still would not work. It keep popping off as a corrupted file. I already tried repairing the game, un syncing from my icloud, and putting the file not too deep only in the mods file. I am not sure what to do because the game only runs if there is no mods or if the mods are "zipped."  I tried it with many different kind of mod and it continue to not work therefore I don't think it's the mod itself have a problem. Overall, I am very confuse and want to use mods so please somebody help me I have a MacBook Air 2018!!!