Trash Audio Units Preferences
Step 1: First, open Finder, hold the Option key, click on the Go menu and select Library.
Step 2: Then navigate to User Library > Preferences and delete the file com.apple.audio.InfoHelper.plist.
Step 3: Next, navigate to User Library > Caches > AudioUnitCache and delete any of the following files:
Step 1: Go > Library
Step 2: Delete InfoHelper.plist File
Step 3: Delete AU Cache File