I got two almost identical fatal error message when running this plugin.
#1 in the blog page (I created template page and create new page)
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 512 bytes) in /home/anakicom/public_html/wp-includes/capabilities.php on line 484
#2 in the "Edit Members" menu at dashboard
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 55 bytes) in /home/anakicom/public_html/wp-includes/capabilities.php on line 483
it seems that some people got the same problem (but it's not with this plugin) here and here. since the solution (changing a WP setting) didn't applied successfully to everyone that had the same problem and since it's not specifically related to this Member List plugin, I've decided to write a new forum post about this.. maybe it because of the plugin code, not the wordpress setting..
thank you very much for the help, and I'm very appreciate with this cool plugin! this is what I was looking for before :)