I keep getting these errors

[markofkane]

With my custom brains

[tedathome]

I usualy find that a plugin that is not working correctly with the new brain is causing the errors.

[Daireaux]

I get that error now with the Learn From Clipboard plug-in.

[Medeksza]

This is most likely the loneliness plug-in (or maybe another plug-in). You need to set up the options for time and frustration to initialize the tables it needs, it most likely is not set to anything. This is pre-initialized in the new 6.2 brain but you must do it yourself to any old custom brain.