"The block Boost:" was assigned to the invalid region right and has been disabled

Have you made any changes to your theme? From the looks of it block placeholders are not there

have you tried moving them to another region?

See #1172560: The block X was assigned to the invalid region Y and has been disabled., it is not specific to Boost.

Please consider removing the default regions. There is no indication that the core issue being triggered by the default regions will be resolved any time soon. Furthermore, there is no reason to assign a default region for these blocks other than perhaps the module owners preference.

I'm not sure I understand. I'm testing Boost on a site using the Drupal Commons install profile with a supplied theme. It seems to be working great!!! Super-fast. But, I'm getting lots of this:

The block Boost: Pages cache status was assigned to the invalid region right and has been disabled.
The block Boost: Pages cache configuration was assigned to the invalid region right and has been disabled.
The block Boost: AJAX core statistics was assigned to the invalid region right and has been disabled.

BTW, Drupal Commons uses Context to manage blocks so the core block page shows no blocks assigned to any regions including those mentioned in the error messages. These messages just look weird. Where are these blocks getting assigned to regions in the first place?

Is any site running Boost with a theme that doesn't have a block named 'right' going to constantly throw these errors or is there something else going on?

I discovered the following sql work-around. Execute this query on your drupal database and it eliminates the warnings.

UPDATE blocks SET region=0, custom=0 WHERE module='boost'

#1267072: Invalid region right error message

@tangent that seems to have done the job. i'll keep you updated if that changes. thanks