Got some time to investigate this issue. In my case that was is problem with zeitgeist-daemon which was unable to start:
[13:40:12.608448 WARNING] zeitgeist-daemon.vala:504: Can't create database: 1, there is already another table or index with this name: interpretation_old
Problem was solved by deleting it's cache db - ~/.local/share/zeitgeist/activity.sqlite
Got some time to investigate this issue. In my case that was is problem with zeitgeist-daemon which was unable to start: daemon. vala:504: Can't create database: 1, there is already another table or index with this name: interpretation_old
[13:40:12.608448 WARNING] zeitgeist-
Problem was solved by deleting it's cache db - ~/.local/ share/zeitgeist /activity. sqlite
Hope this might help.