I honestly don't think this comes from SparkShare being installed, never heard of that and SS is a year old
I remember this kind of error (at least the message that comes with) on the official forums (that are now unfortunately down). Will try to check what is going on. Restarting, trying later etc doesn't do anything right?
That error code returns some weirdness from MS: https://support.microsoft.com/fr-ch/kb/295297