A programming error in aptdaemon

Hi
When I try to search flash and java from the store of the software, I find the following message:
There seems to be a programming error in aptdaemon, the software that allows you to install/remove software and to perform other package management related tasks. Please report this error at https://login.launchpad.net/99XpjDRm9ZnH3TKQ/+decide and retry.
Then I tried it again and again, minimum 20 times but same message. Please help me.
Thank in advance.
