It could well be it was nothing you've done.I'll try to help you find out what's happening.
It will help if I know a couple things first.Answering me will help me to find things quicker.
What is your operating system?
When you uninstalled Spybot,did you uninstall it from Programs and Features (or Add/Remove Programs,as the case may be.)
How has your computer been acting prior and during the permissions window appearing when you try to open Spybot?
And I'm asking this due to a very slight lead on the error which I haven't really looked at/into yet,but if you have an antivirus besides Spybot,what is it?