The message is clear enough, I would simply download Rainmeter and install again, this will put the Rainstaller in the correct location and solve your problem...
"Regrettably your planet is one of those scheduled for demolition"
Mike
Please stand by. It looks like Poiru is working on a new skin installer that may or may not be included in today's beta release.
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This is the song that never ends. It just goes on and on my friends. Some people started singing it not knowing what it was, and they'll continue singing it forever just because . . .