Spigot - ApplicationManager quit unexpetedly
The crash report suggests Spigot software is the problem.
Removing Spigot
The Safe Mac provide instructions for removing this software, Adware Removal Guide : Spigot:
Spigot is an adware company responsible for a number of different adware programs. At one time, CNET’s Download.com site was wrapping a lot of Mac software in a CNET Installer that also installs Spigot’s adware.
The Safe Mac recommends removing the following files and folders:
~/Library/LaunchAgents/com.spigot.SearchProtection.plist
~/Library/LaunchAgents/com.spigot.ApplicationManager.plist
~/Library/Application Support/Spigot/
Spigot themselves provide these steps, Uninstall Spigot Mac Extensions.
Causing the Crash: Spigot
The crash log suggests your Mac has Spigot software installed. The following line provides the clue:
Path: /Users/USER/Library/Application Support/Spigot/ApplicationManager
It is unlikely you directly installed Spigot software – or want it on your Mac. The Spigot explains more about its role:
Spigot’s industry leading browser add-ons provide software developers with the ability to maximize monetization per user.