I hate Ubuntu >:(

Desktop Search used to work fine, but now it can’t find any of my files.  I can’t think of anything I’ve done that would make it stop working.  This process is familiar to anyone who has used Ubuntu.  Something works great for a few weeks/months, and then inexplicably stops, and I have to spend a few days trying to figure out how to fix it.

No space left on what device? There is plenty of space. What does this even mean?
Thanks to this error, I cannot edit my Beagle settings, and apparently I cannot have the search icon in the panel where it usually goes.

No space left on what device?  There is plenty of space.  What does this even mean?

Thanks to this error, I cannot edit my Beagle settings, and apparently I cannot have the search icon in the panel where it usually goes.