The problem lies within the ‘../wp-resume/includes/templating.php’.
It’s a two part “oops”. Most of the WP plugin methods are being called from a “boiler_plate”, which seems fine and makes upgrading a helluva lot easier to keep track of… but ‘get_user_by()’ is method we need because in multiple places in the file $this->parent->options->get_user_option( 'name', $this->author ) is being invoked and the 2nd parameter of this method required an ID.
My interim fix:
[Please use pastebin for this much code – http://codex.ww.wp.xz.cn/Forum_Welcome#Posting_Code ]
I’ll be putting it into Github, hopefully it will roll-out in the next update.