Logic Pro Help

I'm getting a file couldn't be open error when I do a rescan in the plugin manager. The plugins are Akai MPC essentials and VIP. I first tried to delete them by right clicking on the plugins. The remove option was greyed out. I then deleted the apps and removed the .component and .vst files from the system library. There are no plugins in my associated user directories. I don't get any errors when I bring up Logic Pro. I just trying to keep things clean. There must be entries for the plugins elsewhere. Where should I check?

I put my details in my signature. This is my first post so I don't know they are all you need to know.

After a few restarts, the missing plugin entries went away on their own.