Thread:Project:Support desk/fatal error to create accounts

In my wiki only users with an account should be able to edit sides and only the admin should be able to create accounts. so followings parameters will be define:

no i try to make a account and send the random password to the user. before I add following to the end of the LocalSettings.php-File:

when I create a new account and the message will be send (my opinion) the message will be: '' Internal error [e2be8d67] timestamp Fatal exception of type MWException''

the second way....

I get the message

''Internal error [1e5d5930] 2014-10-13 13:03:17: Fatal exception of type MWException''

can someone help me....? (Win7 64 bit, Apache 2.4, PHP 5.6, MySQL 5.6, mediawiki 1.23.5)