This tool is made to help end users (hopefully) figure out what might be wrong with their CurseForge installation
Get the latest version from here https://github.com/CurseForgeCommunity/cf-troubleshooter-win/releases/latest
Windows 10 or above required
Have you accidentally set some applications to run in compatibility mode, and now your Minecraft looks like it's from 2009?
Have you installed certain launchers that modify how you access certain servers, and now things won't work when you want to?
Installed mods both by using the app and dragging/dropping into the mods folder?