E_WARNING: sprintf(): Too few arguments

Hi,
Similar to https://www.ads-software.com/support/topic/error-message-on-a-fresh-wordpress/, I was experiencing very high error rate on my wordpress setup. Disabling bp group documents solved all of them (v1.9.4)

Since my community loves and needs bp group documents, could you help me solve this?
Thanks!

Sample stack trace:
…led at /var/www/html/wp-content/plugins/bp-group-documents/include/
in sprintf called at /var/www/html/wp-content/plugins/bp-group-documents/include/widgets.php
widgets.php (341)
…t::__construct called at /var/www/html/wp-includes/
class-wp-widget-factory.php (106)
in WP_Widget_Factory::register called at /var/www/html/wp-includes/widgets.php (113)
…led at /var/www/html/wp-content/plugins/bp-group-documents/include/
widgets.php (16)
…cuments_register_widgets called at /var/www/html/wp-includes/
class-wp-hook.php (298)
in WP_Hook::apply_filters called at /var/www/html/wp-includes/class-wp-hook.php (323)
in WP_Hook::do_action called at /var/www/html/wp-includes/plugin.php (453)
in do_action called at /var/www/html/wp-includes/widgets.php (1474)
in wp_widgets_init called at /var/www/html/wp-includes/class-wp-hook.php (298)
in WP_Hook::apply_filters called at /var/www/html/wp-includes/class-wp-hook.php (323)
in WP_Hook::do_action called at /var/www/html/wp-includes/plugin.php (453)
in do_action called at /var/www/html/wp-settings.php (449)
in require_once called at /var/www/html/wp-config.php (111)
in require_once called at /var/www/html/wp-load.php (37)
in require_once called at /var/www/html/wp-blog-header.php (13)
in require called at /var/www/html/index.php (17)