Thanks for your feedback and especially for using my plugin! :)
To your issue: I cannot reproduce such error, as current version and dev version run on various installs ranging from 3.7 to 3.8 including 3.7.1
The issue can also lie in the base plugin "WP Document Revisions", and/or any third-party plugin, even theme - introduced through 3.7.1 update or update to the certain plugins/themes.
The strange thing here is, that my plugin does not much, mostly "rebranding"/ "re-labeling" of WPDR, all with core functions of WordPress and WPDR...
Do you get any error message, warning or notice?
Did you try with WP_DEBUG already? http://codex.wordpress.org/WP_DEBUG
Is it a Multisite or single install? If Multisite, is it network-activated?
It would help, if I could have look myself in your install if possible, with a temp admin account for testing. If you want, my contact is: http://genesisthemes.de/en/contact/
Thanks, Dave :)