Mediapress Issues

Hello its me again Truthl1ves here, I installed Mediapress plugin as its a buddypress plugin that adds gallerys that members can add to and what not but I can not create a gallery without being in the admin panel. They have functionality to create a user gallery from their profile same with groups and what not but every time I try to do that to test it I get this. Any help in fixing this problem would be greatly appreciated.