bug reporting - Bug 12.10. No reply to the bug report or alternative to submit the report or bug not answered

First, I am new to Ubuntu, and then I was getting a recurring error: window titled "crash report" (it's contents are as below). There is Stop sign being shown at the top next to the battery indicator. Then I can't open the software updates and I'm not able to get updates via terminal.I have tried the 'package manager troubleshooting' help but I don't know how exactly it works and hence I am not able to do anything.

The error looks like this:

Executable Path
/usr/lib/evolution/evolution-calender-factory
Problem Type
 crash
Architecture
 Amd64
Core Dump
 (binary data)
Crash Counter
 1
Date
 Fri , Dec 21...
Disassembly

there is a lot description under this and difficult to write but it has something like

divl
mov
mov
test
jne
jmpg