I am facing the problem on the login of skype, I've searched on the Skype site and found this link.
However, I'm not able to figure out what causes this issue.
I'm using Mac OS X 10.8.3
Here is the link for the crash report.
Since your report shows crash in Thread 0, it might have to do with some other application is garbing all ports. Disable all programs specially if you using VMware, Parallels, or VirtualBox to see if the problem is there. – Borderline 8 mins ago
Based On the above comment :