Ubuntu 12.04 has experienced an internal error
Hi Isabellartd ,
It is common that you have to face these kind of bugs after updating a OS to higher version. Some times the upgrade components fail to work with all hardware configurations. Because it is difficult to test it for all hardware platforms. So initially you have to submit an error report to Ubuntu development team. They collect information from users to fix bugs like this. Also you can search it on Ubuntu forums.
There you can get an Idea to fix the problem. Visit https://bugs.launchpad.net and post your problem. Then check the status of your report. There will be similar errors reported from the community. Definitely bug will be fixed buy Ubuntu; but you have to be patient.
One suggestion, Instead of upgrading to the higher version you can re-install the OS after backup your old data. It avoids errors like this.
Hope this is helpful.
As far as I know, this problem with Ubuntu's Apport (it's error reporting utility) doesn't have a fix as of now. But you can disable this so it won't pop out very often.
To do this, you have to:
If you follow this, Apport will not start up when Ubuntu opens, but this doesn't remove this utility, it just disables.
Hope this will help.
To resolve this problem turn off Apport. To turn off Apport run the command “sudo sed -i s/enabled=1/enabled=0/ /etc/default/apport”. After that you will not experience this issue again. Aforementioned solutions are good but also you will get more idea to resolve this issue form this Techyv page too.