davidbick01 on "[Plugin: WP-Filebase Download Manager] Error Message"

I moved to the Hueman theme, and things seem working normally except for the insertion of wpfilebase tags into a page. I then get:
FATAL ERROR:Array
(
[type] => 1
[message] => Call to undefined function ot_register_meta_box()
[file] => /srv/data/web/vhosts/kanarvag.org/htdocs/wp-content/themes/hueman/functions/meta-boxes.php
[line] => 269
)
Not sure what to do!