warning message when adding a gallery

Hi to all. This plugin would be a wonderfull solution for me, exactly what I need, but when I try to add a gallery from a profile, after filling up all the fields, I click on Add album botton and everything desappears and a blank page shows this message:

Warning: Missing argument 13 for bp_gallplus_add_album(), called in /home/terrenoi/public_html/lotroviqua.it/wp-content/plugins/bp-gallery/includes/bpa.screens.php on line 1194 and defined in /home/terrenoi/public_html/lotroviqua.it/wp-content/plugins/bp-gallery/includes/bpa.core.php on line 568

Warning: Missing argument 14 for bp_gallplus_add_album(), called in /home/terrenoi/public_html/lotroviqua.it/wp-content/plugins/bp-gallery/includes/bpa.screens.php on line 1194 and defined in /home/terrenoi/public_html/lotroviqua.it/wp-content/plugins/bp-gallery/includes/bpa.core.php on line 568

Warning: Cannot modify header information – headers already sent by (output started at /home/terrenoi/public_html/lotroviqua.it/wp-content/plugins/bp-gallery/includes/bpa.core.php:568) in /home/terrenoi/public_html/lotroviqua.it/wp-includes/pluggable.php on line 881

Could please somebody help me?
I’m using BP 1.5.6
I really thank you very much,
Susanna

http://wordpress.org/extend/plugins/bp-gallery/