I switched to a different computer, my old laptop, my mods worked perfecly fine

I recently switched to a new all-in-one pc and on my old laptop, all my mods for sims 4 works perfectly fine but when i re-downloaded my mods, it keeps saying they are corrupted or "ERROR" this is really frustrating me because i cant play sims without mods ☹️ plus i spent almost over $500 on DLC