[NMM "A problem occurred during install"]

Eli's Armour Compendium - Eli"s Armour Compendium - CBBE and BodySlide 1.4 // A problem occurred during install:

The process cannot access the file 'C:\Users\BrokenNose\AppData\Local\Temp\NexusModManager\yqjcn3t0.5tl\Materials\Elianora\Armour Compendium\Jets\bluelens.bgem' because it is being used by another process.

The mod was not installed. // Install //

This keeps poping up everytime i try install a mod

any help please???