Same thing here. Site crashes when this plugin is enabled since the update.
What was the solution to this?
[10-Sep-2014 15:46:17 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /xxxxxxx/xxxxxx/wp-content/plugins/wpbook-lite/wpbook-lite.php:1) in /xxxxxxx/xxxxxx/wp-includes/pluggable.php on line 1173
I just tried deleting and re-installing WPBook Lite and it did not resolve the issue. The blank screen is still there.
I am having the same issue. I deactivating every other plugin and the blank screen was still there. Any idea why this would be?