Sorry 'bout that.
For some reason:
1. The phase of the moon.
2. Atmospheric and Ionic interference.
3. Sun spots.
4. Strange little Web Gremlins.
5. Mr. Mestro's Minature Mercurial Meretricious Monsters.
6. Fluctuations of the Earth's Magnetic field.
7. Amorphos transmutations of electron flow.

Or some other, as yet unexplained phenomonon,
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The Management