Great! And nope you do not need to do anything else since the issue/problem did turn out to be a server issue afterall and that is now taken care of.
There is one thing you should do in regards to 1 of your installed plugins and that is to delete the WordPress File Monitor Plus plugin. AutoRestore/Quarantine is an Intrusion Detection and Prevention System (IDPS) file monitor with file autorestore and quarantine capability so it would be silly to keep using the WordPress File Monitor Plugin plugin since ARQ is already doing what that plugin can do and a whole lot more.