unknown error -45054 iTunes

I'm opening iTunes 11.1.1 and am getting an error message that says "an unknown error occurred (-45054). I can click the OK button and the message goes away allowing me to use iTunes like normal. So, I updated to iTunes 11.1.2 and the same message comes up, but when I hit the OK button, iTunes quits. I then re-installed iTunes 11.1.1 to at least allow it to be useable. The laptop (a MacBook running 10.6.8) had the firewall turned on in the Security Pane, but I turned it off to no avail. Does anyone know of a kb article about that error number? Any ideas would be appreciated.