The renderer is stuck in an inifite loop, because...
'post' with ID 31 renders 'post' 26 (edit)
'post' with ID 26 renders 'post' 17 (edit)
'post' with ID 17 renders 'post' 26 (edit)
And so on...

a 'post' could be a Breakdance template, global block, WP post, page, or any other content