Just a heads-up for anyone using this plugin:
I had been using ArchiveCacheManager without any issues for a while.
After updating to the latest LaunchBox release (13.21), BigBox started crashing on startup with a BinaryFormatter serialization and deserialization have been removed error (https://aka.ms/binaryformatter).
Disabling the badge wasn’t enough — I had to fully uninstall the plugin by removing ArchiveCacheManager.dll from the LaunchBox\Plugins folder.
After that, everything went back to normal. Just sharing in case it helps someone else!