You have added new users to NetCommunity from Raiser's Edge via a user import or from Education Edge via the Add Users utility . When the new user attempts to reset their password and clicks submit, they may encounter a runtime/server error.
I am getting a server error when resetting a password for a user. Server error resetting password for a user added with import or Add Users utility.
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch.