Catmallow628

Lately I've been having a really annoying issue with Forge. Every time I open Minecraft, the same screen pops up but with a different mod. This screen always says "Forge Mod Loader has found a problem with your installation, the mods and versions listed below could not be found" Below that, there will be a different mod name each time. It also tells me to download that mod. I do replace them, and download what it says, but from what I can tell it doesn't work. I know this because I've seen the same screen multiple times even after I've re-downloaded the mod that it says. This is really annoying, and I can't even open Minecraft, so any advice is appreciated. I'm so sorry if this is a dumb question, but I feel like I've scoured the internet!