Blank screen and easydicsuss SQL error with Easy Profile account

Hi,
I installed Easy Profile from JSN with their joomsocial bridge feature which permit to have avatar intergration. So i configured easydiscuss with :

Go to Administration->Components->EasyDiscuss
Set Jomsocial on Settings->General->Workflow->Select a register provider
Set Jomsocial on Settings->Layout->Avatar->Profile picture integrations

Then when i update my profile avatar photo and i come back to home, i get a blank screen, and when i go to easydiscuss menu, i get this error :

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') union select b.`category_id` from `b1j2i_discuss_category_acl_map` as b ' at line 1 SQL=select c.`id` from `b1j2i_discuss_category` as c where not exists ( select b.`category_id` from `b1j2i_discuss_category_acl_map` as b where b.`category_id` = c.`id` and b.`acl_id` = '2' and b.`type` = 'group' and b.`content_id` IN () union select b.`category_id` from `b1j2i_discuss_category_acl_map` as b where b.`category_id` = c.`id` and b.`acl_id` = '2' and b.`type` = 'user' and b.`content_id` = '559' ) and c.`private` = '2'

I need to logout and re-login and then it works.

Could you help me?