Error with IBM Lotus Notes Quickr

It has been my routine to take a look at my e-mail box user interface, refreshing my mailbox soon after my Notes 8.0.1 upgrade.
The New action button is not available to me for saving attachments to a Quickr place, I presume. On choosing the Preferences menu item I faced an error message as follows:
“The specified database driver does not support this function.”
The status bar indicates this message: “qkr”: “NoCache”
In my opinion the "database driver" is regarding the "qkr" option in the @DbCommand: as I had an ndbqkr.dll file in the directory of Notes client program.
I had already installed the Quickr jointer on my computer so that I may check all my Quick options without any difficulty.
Have you ever met the problem like this? Have you any suggestion? Thanks so much.
