Checking the Gui or following the forum is the way to see if the update server is running again. You can follow the message on this post
But the fact that the update server is not working doesn’t mean Pimatic can’t run.
I see in your first post that pimatic is starting, but (some) rules don’t work.
That is probably because a plugin isn’t starting. Can you see if the plugin you installed just before the problems started is loaded? (plugin status must be active and loaded) and what the name of that plugin?