There is a typo in shortcodes.php that causes a fatal error:
`Fatal error: Uncaught Error: Call to undefined function emtpy() in /public_html/wp-content/plugins/bbpress-voting-pro/shortcodes.php:15
I noticed when a non-logged user posted a new topic. It takes them to an error screen. You just misspelled empty on line 15 in wp-content/plugins/bbpress-voting-pro/shortcodes.php.
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