There is a known bug with metalayer-crawler right now. A fix has been made and I'd assume will be a part of the next SSU. You can see the bug report which has an installable .deb file which will fix the problem inlcuded: https://bugzilla.maemo.org/show_bug.cgi?id=3970

I will give you this warning though: Installing that file will cause the removal of a metapackage that may cause your system to not upgrade correctly or to fail to upgrade when the next SSU is available. In the past, this has occaisionally resulted in some people having to reflash their systems. It should be noted, however, that the package that is removed is not, itself essential for a working tablet, so theoretically, you should be able to install this update and not have to worry about it. I would just make sure to reinstall the package that gets uninstalled prior to doing any system upgrades.