Issue against Menu attributes module

Hi,

When installed together Menu minipanels and menu attributes modules, the second doesn't work and constantly appears in the logs the error "Missing argument 2 (alternate with "3") for user_category_load(), called in /includes/menu.inc on line 411 and defined in /modules/user/user.module alla riga 1155." As soon as Menu minipanels is disabled, all works as expected and the error in the log doesn't appear anymore.