About the login page

I’ve used the login_generation for creating a login page. it worked with
3 fields in db. id login and pass but I couldnt add the other fields in
the db. When I add program starts to giving errors about the methods.

I’m gonna make a community website and user profiles are critical for me
is there any ideas?

I’m thinking about makins smt like mydomainname.com/userprofile

as profile pages

Please help me about that

Regardz

give us more information
give us the table layout
give us a linbk to the plugin you used
give us relevant (!) code
give us exact error messages